Thayer's Greek Lexicon

 1. to set free
2. to let go, dismiss, (to detain no longer)
  1) a petitioner to whom liberty to depart is given by a
decisive answer
  2) to bid depart, send away
3. to let go free, release
  1) a captive i.e. to loose his bonds and bid him depart, to
give him liberty to depart
  2) to acquit one accused of a crime and set him at liberty
  3) indulgently to grant a prisoner leave to depart
  4) to release a debtor, i.e. not to press one's claim against
him, to remit his debt
4. used of divorce, to dismiss from the house, to repudiate. The
wife of a Greek or Roman may divorce her husband.
5. to send one's self away, to depart