Proto-IE: *kad-
Meaning: to injure, to harm
Old Indian: kadana- n.`destruction, killing, slaughter'; cakāda kadanam `to kill or hurt'
Old Greek: hom. kekadṓn `beraubend', ft. kekadḗsei̯ `er wird berauben', aor. kekadē̂sai̯ `вредить etc. (`blápsai, kakō̂sai, phéisasthai, sterē̂sai', Hsch.); hüpò ... kekádonto `sie wichen zurück' Hom.), ekekǟ́dei̯ (Konjektur) = hüpe<ke>khōrḗkei' Hsch., {apokadéō = asthenéō Hsch. - wanted!}; {kǟ́dō `verletze, schädige' -wanted!}
Latin: calamitās, -tis f. `Schaden; Hagelschlag, Kornbrand, Misswachs; Unheil, Verderben'; incolumis, -e `unversehrt, heil'; cadamitās (Mar. Victorin. gr. VI 8:15) = calamitās
Russ. meaning: вредить