Borrowed from Hebrew גְּבִיר, Yiddish גביר (gbir).
gvir (plural gvirim)
- (Jewish slang) A wealthy person.
1994 July 26, A. Engler Anderson, “Why are Hasidim speaking for all Orthodox?”, in soc.culture.jewish[1] (Usenet):They are EXTREMELY powerful in the movement as a whole, if only because they are the ones who bring the "gvirim" to the semi-annual Machne Israel Development Fund events.