cascade (n.)
1640s, from French cascade (17c.), from Italian cascata "waterfall," from cascare "to fall," from Vulgar Latin *casicare, frequentative of Latin casum, casus, past participle of cadere "to fall" (see case (n.1)).
cascade (v.)
1702, from cascade (n.). In early 19c. slang, "to vomit." Related: Cascaded; cascading.