Lewis & Short

abscessus, ūs, m. [abscedo],

  1. I. a going away, departure, absence: solis, * Cic. N. D. 1, 10, 24; Verg. A. 10, 445; Tac. A. 4, 57: continuus, continued absence, id. ib. 6, 38.
  2. II. Medic. t. t., an abscess, Cels. 5, 7; in plur., id. 5, 18.