Proto-IE: *bat- ?
Meaning: weakness
Old Indian: batá- m. RV 10, 10, 13 `weakling'
Celtic: Corn badus `lunaticus', bad, badt `stupide', OBret bat, NBret bad `Betäubung, Taumel', bada badaoui `unbesonnen reden', bader, badouer `Maulaffe'
Russ. meaning: слабость