The Collaborative International Dictionary of English v.0.48:

Tweese \Tweese\, Tweeze \Tweeze\ (tw[=e]z), n. [OE. tweeze,
   tweese, fr. F. ['e]tuis, pl. of ['e]tui a case, sheath, box;
   probably of Teutonic origin; cf. MNG. stuche a wide sleeve in
   which articles could be carried, OHG. st[=u]hha, G. stauche a
   short and narrow muff. Cf Etui, Tweezers.]
   A surgeon's case of instruments. --Howell.
   [1913 Webster]