a usually lightweight, loose-fitting garment for women and children, covering the body from the neck or shoulders more or less to the waistline, with or without a collar and sleeves, worn inside or outside a skirt, slacks, etc.
a single-breasted, semifitted military jacket.
a loose outer garment, reaching to the hip or thigh, or below the knee, and sometimes belted.
1820-30; < French, perhaps from the phrase *vêtement de laine blouse garment of short (i.e., uncarded, pure) wool; compare Provençal (lano) blouso pure (wool) < Old High Germanblōz naked, cognate with Old Englishbleat poor, miserable
1828, from Fr., "workman's or peasant's smock" (1788), origin unknown. Perhaps akin to Prov. (lano) blouso "short (wool)" [Gamillscheg]. Another suggestion [Klein] is that it is from M.L. pelusia, from Pelusium, a city in Upper Egypt, supposedly a clothing manufacturing center in the Middle Ages.