Proto-IE: *krawǝk-, -g- (/ Indoir -k'-)
Meaning: to shout; (to) crow
Old Indian: króśati `to cry out, shriek, yell', króśa- m. `cry, yell, shriek'
Avestan: xravsaiti `kreischt, schreit'
Other Iranian: NPers xurōs `Hahn'
Old Greek: krau̯gǟ́ f. `Geschrei, lautes Rufen'; kraugó-s m. 'woodpecker' Hsch., *kraugṓn: kaugón 'id.' Hsch.
Celtic: MIr crū `Rabe' (?)
Russ. meaning: кричать; ворона
References: WP I 413 f
