9. Appendix: Balto-Slavic prosody
9.1. Introduction
Balto-Slavic prosody is a complex area where approaches have changed more radically than in other parts of the historical study of Balto-Slavic. Today most scholars take the starting point in the results of Stang (1965), e.g. Illič-Svityč (1979); Dybo (e.g. 1981); Olander (e.g. 2009); Jasanoff (2017).
9.2. Terminology and notation
9.2.1. Terminology: accent
I refer to accent as the prosodic emphasis of a syllable in the word. Stress is the realisation of the accent in stress-accent languages (see below). The accent is realised very differently in different languages, and under different conditions in the same language.
For Indo-European linguistics it is useful to distinguish between languages with stress accent and languages with pitch accent. In languages with stress accent the accented syllable is emphasised through of pitch, relative vowel length, intensity and reduction of unstressed syllables. Stress accent is found in contemporary languages like English, German, Italian, Spanish, Russian and Polish; in historically attested languages like Old English, Old High German and Latin; and in reconstructed languages like Proto-Germanic and Proto-Italic.
In languages with pitch accent the accented syllable is emphasised almost exclusively through pitch. Pitch accent is found in contemporary languages like Japanese; in attested languages like Vedic and Ancient Greek; and in reconstructed languages like PIE, Proto-Balto-Slavic and Proto-Slavic.
The placement of the accent can be more or less independent of the word’s phonological structure. It is useful to distinguish between languages with free accent, limited free accent and bound accent. In languages with free accent the placement of the accent in the word cannot be predicted from the word’s phonological structure, e.g. English, German, Italian, Spanish, Lithuanian and Russian. In languages with limited free accent the placement of the accent in the word can be predicted to a certain extent from the word’s phonological structure, e.g. Greek. In languages with fixed accent the placement of the accent in the word can be predicted from the word’s phonological structure, e.g. Czech, Latvian, Finnish, Proto-Italic and Proto-Germanic (accent on the first syllable); Polish (accent on the penultimate syllable); Latin (accent on the penultimate syllable if it is heavy; otherwise on the antepenultimate syllable); Classical Sanskrit (accent on the penultimate syllable if it is long; otherwise on the antepenultimate syllable if it is heavy; otherwise the pre-antepenultimate syllable).
9.2.2. Terminology: tones
Tone refers to phonologically relevant pitch contrasts. The domain for tones can be the syllable or the word.
Some languages have syllable tones: Ancient Greek nom.sg φώς m ‘man’ (rising tone) vs. nom–acc φῶς n ‘light’ (falling tone).
Others have word tones: Swedish anden tomten stegen with accent 1: ‘the duck’ (bird), ‘the ground’ (area of earth), ‘the steps’; with accent 2 ‘the spirit’, ‘the elf’, ‘the ladder’.
9.2.3. Notation of Proto-Balto-Slavic, Proto-Slavic and Common Slavic prosodic features
As might be expected, there is no uniform notation of the prosodic features of Proto-Balto-Slavic, Proto-Slavic and Common Slavic. This is partly due to different analyses of the reconstructed languages and partly due to different conventions followed by individual researchers.
Proto-Balto-Slavic acute syllables contained either a long vowel or a diphthong. They are mostly interpreted as glottalised, as opposed to non-acute (“circumflex”) syllables. The notation used here for Proto-Balto-Slavic is the following:
- x̰: “acute” (perhaps glottalised) syllable
- ˈx: accented syllable
- ˌx: unaccented initial syllable
Table 48 shows the notational conventions for Proto-Slavic prosody used here, and those used by Holzer (2009; followed by Klotz 2023); and the traditional conventions for Common Slavic prosody, also used here, alongside those used by Derksen (2008; 2015) (referred to as “Proto-Slavic” by Derksen). See the discussion and overview in Majer (2020).
| type | PS (used here) | PS (Holzer) | CS (used here) | CS (Derksen) |
|---|---|---|---|---|
| (long) acute | *ˈV̄(R) | V̱̄·, V̱R· | *x̋ | *x̀ |
| long “circumflex” | *ˌV̄, *ˌV̄̆R | [unmarked] | *x̑ | *x̑ |
| short “circumflex” | *ˌV | [unmarked] | *x̏ | *x̏, *x̑ |
| long neoacute | *V̄…ˈ, *V̄̆R…ˈ | V̱̄…ˈ, V̱R…ˈ | *x́ | *x́ |
| short neoacute | *V…ˈ, *V…ˈ | V̱̄…ˈ | *x̀ | *x̀ |
The types of syllables refer to the following:
- acute: accented syllable with long vowel or long diphthong: PS nom.sg *ˈlēi̯pā f ‘linden tree’ f ah₂-stem (a.p. a) (CS *li̋pa) |
- long “circumflex”: initial syllable with long vowel or short or long diphthong of an unaccented word-form: PS acc.sg *ˌzei̯mān (from *zei̯ˈmā f ah₂-stem ‘winter’ (a.p. c)) (CS *zȋmǫ)
- short “circumflex”: initial syllable with short vowel of an unaccented word-form: PS acc.sg *ˌu̯adān (from *u̯aˈdā f ah₂-stem ‘water’ (a.p. c)) CS *vȍdǫ
- long neoacute: pretonic syllable with a long vowel or short or long diphthong: PS nom.sg *xu̯arˈstə (CS *xvórstŭ) m o-stem ‘osier’ (a.p. b) |
- short neoacute: pretonic syllable with a short vowel: PS nom.sg *snaˈpə (CS *snòpŭ) m o-stem ‘sheaf’ (a.p. b)
The contemporary Baltic languages have a more or less standardised way of showing the prosodic features.
Lithuanian:
- ė́ ó ý ū́ ér ár ìr ùr: acute syllable (falling tone)
- ẽ ė̃ õ ỹ ũ er̃ ar̃ ir̃ ur̃: circumflex (rising tone)
Latvian:
- V̀: falling tone (German “Fallton”)
- Ṽ: sustained tone (German “Dehnton”)
- V̂: broken tone (German “Stoßton”, “Brechton”)
9.3. Proto-Balto-Slavic prosody
9.3.1. Proto-Balto-Slavic: prosodic system
Proto-Balto-Slavic had a free pitch accent, a difference between glottalised and non-glottalised syllables (cf. 9.2.3) and distinctive quantity.
The accent probably was realised as a high tone on accented syllables, approximately as in Vedic (9.2.1).
In principle the PIE accent was preserved directly in Balto-Slavic, but some accent shifts make the correspondences difficult to see through. In pre-Proto-Balto-Slavic Hirt’s Law took place: the accent is retracted from an accented syllable to a preceding syllable if it contained *VH (3.2.5). In addition to this is the Balto-Slavic paradigmatic accentual mobility: some forms of a paradigm are unaccented, while others are accented on the ending (3.2.7).
Apart from the accent, Proto-Balto-Slavic distinguished between two kinds of syllables, traditionally referred to as “acute” and “circumflex” syllables. According to a widespread suggestion, the distinction may hinge on a difference between glottalised and non-glottalised vowels. An acute syllable (*V̰) has the following main sources.
1. An Indo-European (short) vowel followed by a laryngeal (*V(R)H), in accordance with the loss of laryngeals (3.2.4).
- PIE *mah₂tér- > PBS *ˈmā̰ter- f ‘mother’ > PS *ˈmāter- (CS *ma̋ter-) (a.p. a); OLith., dial. Lith. mótė ‘wife; mother’ (a.p. 1/3)
2. An Indo-European (short) vowel followed by a voiced-unaspirated stop (*V(R)D), in accordance with Winter’s Law (3.2.8).
- PIE *sed- ‘sit’ > PBS *sḛ̄d- > OCS sěděti; Lith. inf sėdé̇ti
- cf. (with voiced aspirated stop) PIE *u̯eg̑ʰ- ‘drive’ (trans.), ‘transport’ > PBS *u̯eź- > PS *vez- (CS *vez‑) > OCS vezǫ; Lith. prs.1sg vežù
By contrast, a non-glottalised vowel can go back to an Indo-European short vowel and probably also an Indo-European apophonic long vowel. The latter point is disputed, however, some authors arguing that PIE long vowels become non-acute in Proto-Balto-Slavic (e.g. Kortlandt 2009; 2012; 2018), and others arguing that they become acute (e.g. Rasmussen 1999: 480–483; Jasanoff 2017: 74–103; Villanueva Svensson 2011; 2023: 144–187).
9.3.2. Proto-Balto-Slavic: paradigmatic accent
After the rise of accentual mobility in vowel stems (3.2.7) Proto-Balto-Slavic nouns and verbs belonged to one of two accent paradigms.
- immobile (a.p. I): all forms are accented on the same, non-desinential syllable – lexemes not accented on the ending in PIE and lexemes with Hirt’s Law
- mobile (a.p. II): forms accented on the first syllable of the ending alternating with unaccented forms – lexemes accented on the ending in PIE
| PIE | PBS | PBS root | Lithuanian | Slavic |
|---|---|---|---|---|
| non-desinential | a.p. I (immobile) | acute | a.p. 1 | a.p. a |
| non-acute | a.p. 2 (Saussure’s Law) | a.p. b (Dybo’s Law 3.3.1) | ||
| desinential | a.p. II (mobile) | acute | a.p. 3 | a.p. c |
| non-acute | a.p. 4 (Saussure’s Law) |
The correspondences between Proto-Balto-Slavic, Baltic and Slavic accent paradigms can be seen in Table 50. The forms are accusative singular of ah₂-stems.
| PBS a.p. | PBS “tone” | PBS | Lith. | Latv. | PS |
|---|---|---|---|---|---|
| I | acute | *ˈlḛ̄i̯pān | líepą a.p. 1 | liẽpu | *ˈlēi̯pān a.p. a |
| non-acute | *ˈu̯ai̯tān | viẽtą a.p. 2 | vìetu | *u̯alˈkān a.p. b | |
| II | acute | *ˌgā̰lu̯ān | gálvą a.p. 3 | gal̂vu | *ˌgālu̯ān a.p. c |
| non-acute | *ˌźei̯mān | žiẽmą a.p. 4 | zìemu | *ˌzei̯mān a.p. c |
9.4. Proto-Slavic and Common Slavic prosody
9.4.1. Proto-Slavic and Common Slavic: prosodic system
Proto-Slavic has a free pitch accent and distinctive quantity. The accent is probably realised as a high tone on the accented syllable, approximately as in Vedic Sanskrit. In principle the Proto-Balto-Slavic accent is preserved directly in Proto-Slavic.
In my analysis, an accented syllable is acute if it contains a long vowel or a long diphthong, and non-acute if it contains a short vowel or a short diphthong. In unaccented syllables acuteness is not relevant.
9.4.2. Proto-Slavic and Common Slavic: paradigmatic accent
Dybo’s Law (3.3.1) causes the Proto-Balto-Slavic a.p. I to split in two, resulting in three accent paradigms in Proto-Slavic and Common Slavic.
Accent paradigm a: columnar accentuation on a non-desinential syllable. Lexemes with Proto-Balto-Slavic a.p. I (immobile accent) and a acute root syllable. Corresponds to Lith. a.p. 1.
- PS nom.sg *ˈkāru̯ā (CS *kőrva) f ‘cow’, acc.sg *ˈkāru̯ān (CS *kőrvǫ)
- PS nom–acc.sg *kaˈpūta (CS *kopy̋to) n ‘hoof’, gen.sg *kaˈpūtā (CS *kopy̋ta)
- PS nom.sg *paˈdabā (CS *podòba) f ‘manner’, acc.sg *paˈdabān (CS *podòbǫ)
- PS prs.1sg *ˈlēzān (CS *le̋̌zǫ) ‘crawl’, prs.3sg *ˈlēzeti (CS *le̋̌zetĭ)
Accent paradigm b : columnar accentuation on the first syllable of the ending. Lexemes with Proto-Balto-Slavic a.p. I (immobile accent) and a non-acute root-syllable (which triggers Dybo’s Law; 3.3.1). Corresponds to Lithuanian a.p. 2.
- PS nom.sg *geˈnā (CS *ženà) f ‘woman; wife’, acc PS *geˈnān (CS *ženǫ̀)
- PS prs.1sg *maˈgān (CS *mogǫ̀) ‘can’, prs.3sg PS *maˈgeti (CS *mòžetĭ)
Accent paradigm c: alternation between unaccented word-forms and word-forms with accent on the ending. Lexemes with Proto-Balto-Slavic a.p. II (mobile accent). Corresponds to Lithuanian a.p. 3 (acute roots) and 4 (non-acute roots).
- PS nom.sg *gālˈu̯ā (CS *golvà) f ‘head’, acc.sg *ˌgālu̯ān (CS *gȏlvǫ)
- PS prs.1sg *ˌgirān (CS *žĭ̏rǫ) ‘swallow’, prs.3sg *gireˈti (CS *žĭrètĭ)
PIE root-accented masculine nouns are expected to have a.p. b in Slavic, but they seem to have been analogically transferred into a.p. c.
- PIE *g̑ómbʰo- (cf. Ved. jámbha- ‘tooth; (du.) jaws)’, Gk. γόμφος ‘pin; nail’) > PBS *ˈźambas (a.p. I) (cf. Lith. žam̃bas ‘(sharp) edge’ (a.p. 2/4)) → PS *ˌzanbə (CS *zǫ̑bŭ) m ‘tooth’ (a.p. c)
Proto-Indo-Euroepan root-accented neuters look like they often become masculine and take a.p. b in Slavic:
- PIE *dʰu̯óro- n → PS *du̯aˈrə (CS *dvòrŭ) m (a.p. c) ‘courtyard’
9.5. Prosodic systems of the Slavic languages
9.5.1. South Slavic: Bosnian, Croatian, Montenegrin, Serbian
(Serbo-Croatian)
The standard BCMS languages, which all build on Štokavian dialects, have a stress accent, syllable tones and distinctive quantity, with certain prosodic limitations.
- the accent is restricted to non-final syllables (except for monosyllabic words)
- falling tone is only found in initial syllables (including monosyllabic words)
- rising tone is only found in polysyllabic words
We have the following reflexes in the first syllable:
Common Slavic acute yields a short falling tone (x̏)
- PS nom.sg *ˈbābā (CS *ba̋ba) f (a.p. a) ‘grandmother’ > Štok., Čak. bȁba
Common Slavic long neoacute yields a long falling tone (x̑; falling together with “circumflex”) in Štokavian, but long rising tone (x́, x̃) in conservative dialects
- PS nom.sg *xu̯arˈstə (CS *xvórstŭ) m ‘brushwood’ (a.p. b) > Štok. hrȃst, Čak. hrást
Common Slavic short neoacute yields short falling tone (x̏).
- PS nom.sg *snaˈpə CS *snòpŭ m (a.p. b) ‘sheaf’ > Štok., Čak. snȍp
Common Slavic long “circumflex” yields long falling tone (x̑).
- PS acc.sg *ˌgālu̯ā (CS *gȏlvǫ) f (a.p. c) ‘head’ > Štok., Čak. glȃvu
Common Slavic short “circumflex” yields long falling tone (x̑) in closed syllables, short falling tone (x̏) in open syllables.
- PS nom–acc.sg *ˌaka (CS *ȍko) n (a.p. c) ‘eye’ > Štok., Čak. ȍko
- PS nom.sg *ˌnasə (CS *nȍsŭ) m ‘nose’ (a.p. c) > Štok., Čak. nȏs
In Čakavian dialects of Croatian the Proto-Slavic accent location is preserved as a starting point.
- Čak. nom.sg glāvȁ ‘head’, acc glȃvu etc.
In the Štokavian dialects (which underlie the standard languages) a retraction of the accent from a non-initial syllable to a preceding syllable occurred; the newly accented vowel has rising tone, written x́ if it is long, x̀ if it is short.
- Štok. nom.sg gláva (cf. Čak. glāvȁ) (cf. Štok., Čak. acc.sg glȃvu)
- Štok. nom.sg žèna (cf. Čak. ženȁ)
9.5.2. South Slavic: Slovene
Slovene has a free stress accent, tones and distinctive quantity.
The relationship between accent, tones and quantity is relatively complicated, and the different Slovenian dialects have very different systems. Some important developments in Slovene are the following:
Common Slavic acute syllables yield short vowels (x̀) in final position (after the loss of CS *ĭ, *ŭ), long rising tone (x́) elsewhere.
- PS nom.sg *ˈgārxə (CS *gőrxŭ) m ‘pea’ (a.p. a) > Sln. gràh (gen.sg gráha)
Common Slavic long neoacute syllables yield long rising tone (x́).
- PS nom.sg *xu̯arˈstə (CS *xvórstŭ) m ‘brushwood’ (a.p. b) > Sln. hrást
Common Slavic short neoacute syllables yield short vowel (x̀).
- PS nom.sg *snaˈpə (CS *snòpŭ) m ‘sheaf’ (a.p. b) > Sln. snòp
Common Slavic long “circumflex” yields long falling tone (x̑) in monosyllabic words, accent movement to the right in polysyllabic words.
- PS nom.sg *ˌku̯āsə (CS *kvȃsŭ) m ‘sourdough’ (a.p. c) > Sln. kvȃs
- PS acc.sg *ˌgālu̯ā (CS *gȏlvǫ) f ‘head’ (a.p. c) > Sln. glavọ̑
Common Slavic short “circumflex” yields long falling tone (x̑) in monosyllabic words. In polysyllabic words the accent moves one syllables towards the end of the word.
- PS nom–acc.sg *ˌaka (CS *ȍko) n ‘eye’ (a.p. c) > Sln. okọ̑
- PS nom.sg *ˌnasə (CS *nȍsŭ) m ‘nose’ (a.p. c) > Sln. nọ̑s
9.5.3. South Slavic: Bulgarian and Macedonian
Bulgarian has a free stress accent. Macedonian has a fixed stress accent on the word’s third last syllable. Neither Bulgarian nor Macedonian have distinctive quantity. Bulgarian prosody is a bit of a murky area from a diachronic point of view, among other reasons, because of the development of the case system. Macedonian is the Slavic language that has the simplest prosodic system; and it is the language that says the least about the Proto-Slavic situation.
9.5.4. East Slavic
The East Slavic languages (Russian, Belarusian, Ukrainian) have a free stress accent. They do not have distinctive quantity. The original Proto-Slavic position of the accent is in principle preserved, originally unaccented word-forms receiving initial accent.
- PS nom.sg *gālˈu̯ā (CS *golvà) f ‘head’ (a.p. c) > Ru. golová
- PS acc.sg *ˌgālu̯ā (CS *gȏlvǫ) f ‘head’ (a.p. c) > Ru. gólovu
In fixed expressions the Proto-Slavic unaccented word-forms are preserved as such, as a result of Šaxmatov’s Law (3.2.7).
- PS *ˌnā gālu̯ā (CS *nȃ golvǫ) ‘on the head’ (a.p. c) > Ru. ná golovu
In structures with Liquid Metathesis (3.4.5), syllables with acute and neoacute are accented on the second vowel (oró, oló, eré), while unaccented word-forms are accented on the first vowel (óro, ólo, ére).
- acute: PS *ˈdārgā (CS *dőrga) f (a.p. a) ‘road’ > Ru. doróga
- neoacute: PS *ˈkarli̯ə (CS *kórlʲĭ) m (a.p. b) ‘king’ > Ru. korólʹ
- unaccented (“circumflex”): PS acc.sg *ˌgālu̯ā (CS *gȏlvǫ) (from PS *gālˈuā (CS *golvà)) f ‘head’ (a.p. c) > Ru. gólovu
9.5.5. West Slavic
In nearly all West Slavic languages the Proto-Slavic free accent is replaced by a fixed accent. A non-fixed accent is still found in Kashubian, especially the now extinct Slovincian dialect spoken in the area of Gdańsk up to the the beginning of the twentieth century, and in Polabian, spoken around Lüneburg in northern Germany until the beginning of the eighteenth century.
The West Slavic languages have (traces of) distinctive quantity.
Czech and Slovak have fixed initial accent and distinctive quantity.
Upper Sorbian and Lower Sorbian have fixed initial accent and no distinctive quantity.
Polish has fixed accent on the penultimate syllable. Traces of an older quantitative distinction is seen in the difference between o ę (originally short syllables) and ó ą (originally long syllables).
- PS nom.sg *ˌnasə (CS *nȍsŭ) m ‘nose’ (a.p. c) > Po. nos
- PS nom.sg *ˈkarli̯ə (CS *kórlʲĭ) m ‘king’ (a.p. b) > Po. król
Kashubian dialects have varying degrees of free accent. Earlier quantitative distinctions have been transformed to distinctive vowel qualities.
In West Slavic the Proto-Slavic prosodic situation has left traces in the quantity. The details are complicated and debated, but the following things are what there is some agreement on.
Czech and Upper Sorbian: Common Slavic acute and neoacute syllables and pretonic long syllables yielded long vowels.
- PS nom.sg *ˈbābā CS *ba̋ba f ‘grandmother’ (a.p. a) > Cz. bába
- PS nom.sg *ˈkarli̯ə (CS *kórlʲĭ) m ‘king’ (a.p. b) > Cz. král
Other syllables yield a short vowel.
PS acc.sg *ˌgālu̯ā (CS *gȏlvǫ) f ‘head’ (a.p. c) > Cz. hlavu
In Slovak, Lower Sorbian, Polish, Kashubian, Common Slavic long neoacute syllables and pretonic long syllables yield long vowels.
- Po. nom.sg król m ‘king’, Slk. kráľ < CS *kórlʲĭ (a.p. b) < PS *ˈkarli̯ə (a.p. b)
Other syllables receive a short vowel.
- Po., Slk. nom.sg baba ‘grandmother’ < CS *ba̋ba (a.p. a) < PS *ˈbābā (a.p. a)
- Po. acc.sg głowę f ‘head’, Slk. hlavu < CS *gȏlvǫ (a.p. c) < PS *ˌgālu̯ān (a.p. c)
9.6. Prosodic systems of the Baltic languages
9.6.1. Lithuanian
Lithuanian has a free stress-accent, tones and distinctive quantity. Lithuanian preserves in principle the Proto-Balto-Slavic accent location. Unaccented word-forms in the mobile paradigms receive initial accent.
- PBS acc.sg *ˌga̰lu̯ān (from *ga̰lˈu̯ā̰ f ‘head’, a.p. II) > Lith. gálvą (a.p. 3)
Moreover, the accent is moved to the right from a non-acute syllable to a following acute syllable by Saussure’s Law (cf. 3.3.1).
- pre-Lith. nom.sg *ranˈkā̰ f ‘hand’ (a.p. 2) > *ˈrankā̰ > (with shortening by Leskien’s Law; see below) Lith. rankà
Lithuanian has two tones: syllables with acute (falling) tone go back to Proto-Balto-Slavic glottalised syllables, whereas syllables with circumflex (rising) tone go back to Proto-Balto-Slavic non-glottalised syllables.
An important tonally conditioned law is Leskien’s Law: the vowel in an acute final syllable is shortened.
- PBS nom.sg *ˈrankā̰ f ‘hand’ > Lith. rankà (a.p. 2)
Saussure’s Law causes the two Proto-Balto-Slavic accent paradigms divide themselves into two, so one gets four accent paradigms
- a.p. 1: fixed accent on a non-ending syllable (which is acute if it is the syllable immediately before the ending) – e.g. nom.sg líepa f ‘linden tree’, acc líepą, gen líepos, dat líepai, etc.
- a.p. 2: accent on the syllable immediately before the ending (if it is circumflex) alternating with ending accent because of Saussure’s Law – e.g. nom.sg rankà ‘hand’, acc rañką, gen rañkos, dat rañkai, etc.
- a.p. 3: accent on a non-ending syllable (which is acute if it is the syllable immediately before the ending) alternating with ending accent because of the mobility – e.g. nom.sg galvà, f ‘head’, acc gálvą, gen galvõs, dat gálvai, etc.
- a.p. 4: accent on the syllable immediately before the ending (which is circumflex), alternating with ending accent because of the mobility and Saussure’s Law – e.g. nom.sg žiemà f ‘winter’, acc žiẽmą, gen žiemõs, dat žiẽmai, etc.
9.6.2. Latvian
Certain Latvian dialects have three tones on long vowels: falling tone (x̀; Fallton), sustained tone (x̃; Dehnton) and broken-tone (x̂; Stoßton, Brechton). In most of the dialects a merger of two of the tones, so that these dialects only have two distinctive tones. The distinction between the three tones is only preserved in initial syllables – in non-initial syllables the falling and extended tone have merged.
The falling tone occurs in Proto-Balto-Slavic non-acute syllables independently of the original accent location, i.e. in words with a.p. 2 and 4 in Lithuanian.
- Latv. rùoka f ‘hand’ (cf. Lith. rankà (a.p. 2)) and Latv. dràugs m ‘friend’ (cf. Lith. draũgas (a.p. 4))
The extended tone occurs in Proto-Balto-Slavic accented acute syllables, i.e. in words with a.p. 1 in Lithuanian.
- Latv. liẽpa f ’linden tree (cf. Lith. líepa (a.p. 1))
The broken tone occurs in Proto-Balto-Slavic unaccented acute syllables, i.e. in words with a.p. 3 in Lithuanian.
- Latv. gal̂va f ‘head’ (cf. Lith. galvà (a.p. 3))
The Latvian broken tone in words with a.p. 3 in Lithuanian can be most easily explained if one assumes that Latvian goes back to a linguistic stage with unaccented word-forms in the mobile paradigms, which Slavic also seems to have been.