Lewis & Short

ex-sănĭo (exan-), āre, v. a. [sanies], to free from matter or corruption, to cause to suppurate, to cleanse, dress a wound, etc. (post-Aug.).

  1. I. Lit.: vulnus (sal aridus), Cels. 5, 27.
    Transf.: pressam bacam, to press out the juice, Col. 12, 47, 10: sinapi, id. 12, 57, 2: salsuram carnis, id. 12, 55, 2: veterani, quamvis confossi, patienter et sine gemitu velut aliena corpora exsaniari patiuntur, Sen. Cons. ad Helv. 3, 1.
  2. II. Trop.: amaritudinem et pallorem, i. e. to extract, remove, Col. 12, 55.