Ovid

Fluminaque obliquis cinxit declivia ripis; Quæ, diversa locis, partim sorbentur ab ipsa; In mare perveniunt partim, campoque recepta Liberioris aquæ, pro ripis litora pulsant.

Ovid, Metamorphoses I 39

He confined the rivers within their sloping banks, Which in different places are part absorbed by the earth, Part reach the sea, and being received within the plain Of its freer waters, beat the shore for banks.