Proto-Basque: *kaio
Meaning: 1 a kind of seagull 2 seagull (a large variety, ashy white in color) 3 skua
Bizkaian: (Lekeitio) kaio 2
Gipuzkoan: kaio, (Zumaya) kaio 2, (Donostia) kaio moriko 3
High Navarrese: (Ondarrabia) kaio 2
Comments: One of the words in which the original nasal (PSC *qV̄́ŋɦǝ̄) has been lost: cf. Bsq *(e=)kee 'smoke' (PSC *ḳwɨ̆́ŋħV), Bsq *siHi ‘wedge, skewer, spit’ (PSC *c̣VŋHV́, etc.