1299, gingerbrar, from O.Fr. ginginbrat "preserved ginger," from M.L. gingimbratus "gingered," from gingiber (see ginger). The ending changed by folk etymology to -brede "bread," a formation attested by 1352. Originally "preserved ginger," the meaning "a kind of spiced cake"
is from 15c. Sense of "fussy decoration on a house" is first recorded 1757, originally gingerbread-work (1748), a sailors' term for carved decoration on a ship.