Boukólos rule
The boukólos rule is a phonological rule of the Proto-Indo-European language (PIE). It states that a labiovelar stop (*kʷ, *gʷ, *gʷʰ) dissimilates to an ordinary velar stop (*k, *g, *gʰ) next to the vowel *u or its corresponding glide *w.
The rule is named after an example, the Ancient Greek word βουκόλος (bou-kólos; from Mycenaean Greek qo-u-ko-ro /gʷou̯kolos/[1]) "cowherd", ultimately from PIE *gʷou-kolos, dissimilated from *gʷou-kʷolos. If the labiovelar had not undergone dissimilation, the word should have turned out as *bou-pólos, as in the analogously constructed αἰπόλος (ai-pólos) "goatherd" < *ai(ǵ)-kʷolos.[2] The same dissimilated form *gʷou-kolos is the ancestor of Proto-Celtic *bou-koli-, the source of Welsh bugail (which would have had -b- rather than -g- if it had come from a form with *-kʷ-) and Irish buachaill, which is the common word for "boy" in the modern language.[3]
Another example could be the Greek negation οὐκ[ί] (ouk[í]), which Warren Cowgill has interpreted as coming from pre-Greek *ojukid < *(ne) h₂oju kʷid, meaning approximately "not on your life". Without the boukólos rule, the result would have been *οὐτ[ί] (out[í]).[4]
The rule is also found in Germanic, mainly in verbs, where labiovelars are delabialised by the epenthetic -u- inserted before syllabic resonants:[5]
- Old High German queman ("to come"), past participle cuman ("come"), from Proto-Germanic *kwemaną and *kumanaz
- Gothic saiƕan, Old High German sehan ("to see"), past plural OHG sāgun ("saw"), from Proto-Germanic *sehwaną and *sēgun (-g- results from earlier -k- through Verner's law)
See also
- Weise's law, a similar Proto-Indo-European sound law affecting the palatovelar consonants
References
- ^ Beekes, Robert Stephen Paul (2011). Comparative Indo-European Linguistics: An Introduction. John Benjamins Publishing. ISBN 978-90-272-1185-9. Retrieved 12 August 2017.
- ^ Fortson, Benjamin W. IV (2004). Indo-European Language and Culture. Blackwell Publishing. p. 64. ISBN 1-4051-0316-7.
- ^ Matasović, Ranko (2009). Etymological Dictionary of Proto-Celtic. Leiden: Brill. p. 72. ISBN 978-90-04-17336-1.
- ^ Fortson (2004:133)
- ^ Ringe, Donald A. (2017). From Proto-Indo-European to Proto-Germanic. Linguistic history of English, v. 1 (2nd ed.). Oxford: Oxford University Press. pp. 111–112. ISBN 0-19-955229-0.
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- Accent
- Centum and satem
- Glottalic theory
- Laryngeal theory
- s-mobile
- Sound laws
- boukólos rule
- *kʷetwóres rule
- Glossary of sound laws
- Brugmann's
- Bartholomae's
- Fortunatov's
- Grassmann's
- Osthoff's
- Pinault's
- Siebs's
- Sievers's (Edgerton's converse)
- Stang's
- Szemerényi's
- Weise's
- Ablaut
- Caland system
- h₂e-conjugation
- Narten present
- Nasal infix
- Root
- Thematic vowel
- Vṛddhi
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