Blouse
BLOUSE, a word (taken from the French) used for any loosely fitting bodice belted at the waist. In France it meant originally the loose upper garment of linen or cotton, generally blue, worn by French workmen to preserve their clothing, and, by transference, the workman himself.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)