(transitive, archaic) To relieve (someone or something) of a load; to unburden (a load).
(obsolete, reflexive) Of a body of water: to discharge or empty (itself).
(transitive) To free (someone) from an obligation, responsibility or task.
(transitive) To free (someone) from accusation or blame.
(archaic) Freed from an obligation; freed from accusation or blame; acquitted, exonerated.