Proto-Sino-Tibetan: *kēk
Meaning: beat, knock
Tibetan: rgjag-pa to throw, cast, fling.
Burmese: khjak numerative for hits, shots etc. (cf. also khjaʔ to strike, hit ?).
Kachin: ǝkhjeʔ2 to jerk, twitch.
Lushai: kik to rap, tap, knock.
Lepcha: kăk to shake
Comments: Since Tib. rgjag also means 'bite' in so rgjag (lit. 'tooth throw') one can also compare words for 'bite' in Bodo *gak, Nocte kak, Naga *kak.
