1610s, "suitcase, soldier's kit bag," from Middle French valise (16c.), from Italian valigia, of uncertain origin. Attested in Medieval Latin forms valisia (early 15c.), valixia (late 13c.). "The name is generally given to a leather case of moderate size, opening wide on a hinge or like a portfolio ...." [Century Dictionary][valise etymology, valise origin, 英语词源]