Proto-IE: *kerk-, -g- (kh-)
Meaning: a k. of bird
Old Indian: khargálā f. `an owl or any similar night-bird'
Old Greek: kérkaks = hiéraks Hsch., kerkás, -ádos f. = kréks Hsch., kerkithalís = erōidiós Hsch., kerkís kind of bird Hsch., kérknos = hiéraks, ḕ alektrüṓn Hsch., kérko-s = alektrüṓn Hsch., kírkos a k. of hawk or falcon Hom.+; kórkora 'a bird' (Perg.) Hsch.
Celtic: OIr corr `Kranich', MIr cercc 'Henne', Cymr crychydd `Reiher', OBret corcid `Reiher', Bret kerc'heiz `Reiher'
Russ. meaning: птица (вид)
References: WP I 413
