memsahib \mem"sa`hib\, mem-sahib \mem"-sa`hib\(m[e^]m"s[aum]`[i^]b), n. [Hind. mem-s[=a]hib; mem (fr. E. ma'am) + Ar. [,c][=a]hib master. See {Sahib}.] Lady; mistress; -- used by Hindustani-speaking natives in India in addressing European women. [Webster 1913 Suppl.]