mid-15c., "portable equipment of an army; plunder, loot," from Old French bagage "baggage, (military) equipment" (14c.), from bague "pack, bundle, sack," ultimately from the same Scandinavian source that yielded bag (n.). Later used of the bags, trunks, packages, etc., of a traveler (in this sense British English historically prefers luggage). Baggage-smasher (1847) was American English slang for "railway porter." Used disparagingly, "worthless woman, strumpet" from 1590s; sometimes also playfully, "saucy or flirtatious woman" (1670s).