exonerate

päästää vapaaksi, vapauttaa vastuusta, vapauttaa puhekieltä To relieve (someone or something) of a load; to unburden (a load).
puhekieltä Of a body of water, to discharge (oneself), empty oneself.
(RQ:RBrtn AntmyMlncl), II.ii.3:

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