exonerate

To relieve (someone or something) of a load; to unburden (a load).

Of a body of water: to discharge or empty (itself).

I would examine the Caſpian Sea, and ſee where and how it exonerates it ſelfe, after it hath taken in Volga, Iaxares, Oxus, and thoſe great rivers; at the mouth of Oby, or where?

To free (someone) from an obligation, responsibility or task.

To free (someone) from accusation or blame.

Freed from an obligation; freed from accusation or blame; acquitted, exonerated.