Lewis & Short

līvesco, ĕre,

  1. I. v. n., to turn black and blue, become livid: digiti, Lucr. 3, 528; Scrib. Comp. 181.
  2. * II. Trop., to envy, be envious: nec enim livescere fas est, Claud. Rapt. Pros. 3, 27.