Cascade

Part of speech: noun (n.)

A fall of water over a precipice, as in a river or brook; a waterfall less than a cataract. The silver brook . . . pours the white cascade. Longjellow. Now murm'ring soft, now roaring in cascade. Cawper.

Part of speech: verb (v.)

1. To fall in a cascade. Lowell.

2. To vomit. [Slang] Smollett.