Waterfall
来自Big Physics
wiktionary
From Middle English waterfal, waterfalle, from Old English wæterġefeall(“waterfall”), equivalent to water + fall. Cognate with West Frisian wetterfal(“waterfall”), Dutch waterval(“waterfall”), German Wasserfall(“waterfall”), Swedish vattenfall(“waterfall”).
etymonline
waterfall (n.)
Old English wætergefeall; see water (n.1) + fall (n.). The modern English word is perhaps a re-formation from c. 1500. Similar formation in German wasserfall, Old Norse vatnfall.
