Proto-Sino-Tibetan: *ćūm
Meaning: honour, authority
Tibetan: gćom, bćom pride, haughtiness, arrogance.
Kachin: čum authority.
Comments: The OCh. form can be alternatively compared with Tib. gźuŋ (p. gźuŋs) to attend, be heedful (cf., however, *tŭŋ).