Mem-sahib
Pronunciation : Mem"-sa`hib
Part of Speech : n.
Definition : Defn: Lady; mistress; -- used by Hindustani-speaking natives in India in addressing European women.
[Hind. mem-sahib; mem (fr. E. ma'am) + Ar. ?ahib master. See Sahib.]
Source : Webster's Unabridged Dictionary, 1913