Proto-IE: *kleik'-
Meaning: to bite, to torment
Tokharian: A kleps-, B klaiks- (PT *klaiks-) 'to languish, shrivel, wither' (Adams 228-229)
Old Indian: kliśnāti `to torment, to molest', pass. klíśyate; kleśa- m. `pain, affliction, distress'
Baltic: *klič-iā̃ f.
Russ. meaning: кусать, мучить