Proto-Sino-Tibetan: *mūm
Meaning: bud
Burmese: (Ben.) mum begin to form, as a bud, ǝmum incipient bud.
Kachin: (Ben.) muum, mǝum to bud.
Lushai: mūm to close, or be closed (as a flower).
Comments: Kham mom to germinate, bud. Sh. 38; Ben. 78. The form may be derived from *ʔum bulge q. v.