ἀπολύω
apolýō
ap-ol-oo'-o
from ἀπό and λύω; to free fully, i.e. (literally) relieve, release, dismiss (reflexively, depart), or (figuratively) let die, pardon or (specially) divorce.

KJV translates as: (let) depart, dismiss, divorce, forgive, let go, loose, put (send) away, release, set at liberty