Proto-Sino-Tibetan: *puak
Meaning: to pierce, burst open
Tibetan: ãbug(s), phug to pierce, bore.
Burmese: pauk be pierced, have a hole, phauk to pierce.
Kachin: boʔ2 to burst open, as a sore or boil.
Lushai: puak to explode, burst, pop, KC *puak.
Comments: Kham phu to burst open; Mantshati phug-tsa. Sh. 49, 132. Cf. *phū̆k; OC 爆 *prākʷ-s.