Proto-Sino-Tibetan: *[ph]ra
Meaning: be spread, extended, widely separated
Tibetan: ãbre (p. bre-s) to draw out, spread.
Burmese: prah be separated, apart; phra be split.
Kachin: bra3 be scattered, dispersed; be apart, not close, (H) ǝphra be widely separated or extended.
Comments: Kanauri pra spread, stretch; Bahing bra scatter. Ben. 40.