The Collaborative International Dictionary of English v.0.48:
Valise \Va*lise"\, n. [F. valise; cf. It. valigia, Sp. balija,
LL. valisia, valesia; of uncertain origin, perhaps through
(assumed) LL. vidulitia, from L. vidulus a leathern trunk; a
A small sack or case, usually of leather, but sometimes of
other material, for containing the clothes, toilet articles,
etc., of a traveler; a traveling bag; a portmanteau.