A labialized velar or labiovelar is a velar consonant that is labialized, with a /w/-like secondary articulation. Examples are [kʷ, ɡʷ, xʷ, ɣʷ, ŋʷ], which are pronounced like a [k, ɡ, x, ɣ, ŋ], with rounded lips, such as the labialized voiceless velar plosive [kʷ] and labialized voiced velar plosive [ɡʷ], obstruents being common among the sounds that undergo labialization.
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👉 Labialized velar consonant in the context of Cowgill's law (Greek)
In Ancient Greek, Cowgill's law says that a former /o/ vowel becomes /u/ between a resonant (/r/, /l/, /m/, /n/) and a labial consonant (including labiovelars), in either order. It is named after the American Indo-Europeanist Warren Cowgill.
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Labialized velar consonant in the context of Indo-European sound laws
As the Proto-Indo-European language (PIE) broke up, its sound system diverged as well, as evidenced in various sound laws associated with the daughter Indo-European languages.Especially notable is the palatalization that produced the satem languages, along with the associated ruki sound law. Other notable changes include:
- Grimm's law and Verner's law in Proto-Germanic
- an independent change similar to Grimm's law in Armenian, dubbed the Armenian Consonant Shift
- Adjarian's law in Proto-Armenian
- loss of prevocalic *p- in Proto-Celtic
- Brugmann's law in Proto-Indo-Iranian
- Winter's law and Hirt's law in Balto-Slavic
- merging of voiced and breathy-voiced stops, and /a/ and /o/, in various "northern" languages
- Sturtevant's law
- Cowgill's laws of Germanic and Greek
- Osthoff's law
- Slavic first, second and third ("progressive") palatalization
Bartholomae's law in Indo-Iranian, and Sievers's law in Proto-Germanic and (to some extent) various other branches, may or may not have been common Indo-European features. A number of innovations, both phonological and morphological, represent areal features common to the Italic and Celtic languages; among them the development of labiovelars to labial consonants in some Italic and Celtic branches, producing "p-Celtic" and "q-Celtic" languages (likewise "p-Italic" and "q-Italic", although these terms are less used). Another grouping with many shared areal innovations comprises Greek, Indo-Iranian, and Armenian; among its common phonological innovations are Grassmann's law in Greek and Indo-Iranian, and weakening of pre-vocalic /s/ to /h/ in Greek, Iranian and Armenian.
Labialized velar consonant in the context of Voiced labial–velar approximant
A voiced labial–velar approximant is a type of consonantal sound, used in certain spoken languages, including English. It is the sound denoted by the letter ⟨w⟩ in the English alphabet; likewise, the symbol in the International Phonetic Alphabet that represents this sound is ⟨w⟩, or rarely [ɰʷ]. In most languages it is the semivocalic counterpart of a close back rounded vowel [u]. In inventory charts of languages with other labialized velar consonants, /w/ will be placed in the same column as those consonants. When consonant charts have only labial and velar columns, /w/ may be placed in the velar column, labial column, or both. The placement may have more to do with convenience or phonological criteria than with phonetics.
For a labialized post-palatal approximant sometimes described as a voiced labial–prevelar approximant, which is more fronted in the place of articulation than a prototypical labial–velar approximant, see Labial–palatal approximant § Post-palatal.