Proto-Sino-Tibetan: *chɨāj
Meaning: touch, graze
Tibetan: rce to touch.
Burmese: swajh to whet, rub one substance on another in order to sharpen, polish.
Kachin: (H) soi, gǝsoi to graze, almost hit.
Lushai: thoi slightly graze, go or pass close to (cf. also sui (suiʔ) to scrape or trim (with a blade); čhai to caress or fondle).
