Lewis & Short

lixīvus, a, um, adj. [lix],

  1. I. made into lye: cinis lixiva, Scrib. Larg. 216; 230; Varr. ap. Plin. 36, 27, 69, § 202; 15, 17, 18, § 67: mustum lixivum, the must which flows from the grapes before they are pressed, Cato, R. R. 23.
  2. II. Subst.: lixīvum, i, n., lye, Pall. 2, 15, 18; and so perh. Col. 12, 50, 11.