Proto-IE: *(s)tAud-
Meaning: to hit, to butt
Old Indian: tudáti `to push, strike, goad, sting', tundati `to be active'; todá- m. `driver; pricking pain'
Armenian: thndiun `Lärm, Bewegung, Schlagen (des Herzens)'
Latin: tundō, -ere, tutudī (/tūsī, tūnsī), tūsum/tūnsum `stossen, schlagen; zerstampen', tudes, -itis m. `Hammer'
Celtic: *tud- > OIr do-tuit `fällt'
Albanian: štǘń `stosse'
Russ. meaning: бить, бодать
References: WP II 615 f
