Why is the ninth month called September?
late 12c., "a virgin, a young unmarried woman," shortening of maiden (n.). Like that word, used in Middle English of unmarried men as well as women (cf. maiden-man, c.1200, used of both sexes, reflecting also the generic use of man). Domestic help sense is from c.1300. In reference to Joan of Arc, attested from 1540s (cf. French la Pucelle). Maid Marian, one of Robin Hood's companions, first recorded 1520s, perhaps from French, where Robin et Marian have been stock names for country lovers since 13c. Maid of Honor (1580s) originally was "unmarried lady of noble birth who attends a queen or princess;" meaning "principal bridesmaid" is attested from 1895. Maydelond (translating Latin terra feminarum) was "the land of the Amazons."