gōníā
gōníā γωνίᾱ Knie, "Winkel, Anschlagwinkel, Gelenk, Eckstein"
From a derivative of γόνυ (gónu, “Knie”), ultimately from Proto-Indo-European *ǵónu (“id”). The long ω (ō) is from the regular Doric development of an unattested *γονϝ-ία (*gonw-ía), as the paradigm of *ǵónu shows no lengthened grade (thus precluding a derivation from such an ablaut), while most mathematicians in Greek antiquity (who were most likely responsible for the word's formation) were Pythagorean (and thus wrote in Doric).
- IPA(key): /ɡɔː.ní.aː/ → /ɣoˈni.a/ → /ɣoˈni.a/
γωνίᾱ • (gōníā) f (genitive γωνίᾱς); first declension
- (geometry) corner, angle
- joiner's square
- cornerstone