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Old English fællan (Mercian), fyllan (West Saxon) "make fall, cause to fall," also "strike down, demolish, kill," from Proto-Germanic *fallijanan (cf. Old Frisian falla, Old Saxon fellian, Dutch fellen, Old High German fellen, German fällen, Old Norse fella, Danish fælde), causative of *fallan (Old English feallan, see fall (v.)), showing i-mutation. Related: Felled; feller; felling.
Old English feoll; past tense of fall (v.).
"cruel," late 13c., from Old French fel "cruel, fierce, vicious," from Medieval Latin fello "villain" (see felon). Phrase at one fell swoop is from "Macbeth."
"rocky hill," c.1300, from Old Norse fiall "mountain," from Proto-Germanic *felzam- "rock" (cf. German Fels "stone, rock"), from PIE root *pel(i)s- "rock, cliff."
"skin or hide of an animal," Old English fel, from Proto-Germanic *fellom- (cf. Old Frisian fel, Old Saxon fel, Dutch vel, Old High German fel, German fell, Old Norse fiall, Gothic fill), from PIE *pello- (see film (n.)).
Old English feallan (class VII strong verb; past tense feoll, past participle feallen) "to fall; fail, decay, die," from Proto-Germanic *fallanan (cf. Old Frisian falla, Old Saxon fallan, Dutch vallen, Old Norse falla, Old High German fallan, German fallen), from PIE root *pol- "to fall" (cf. Armenian p'ul "downfall," Lithuanian puola "to fall," Old Prussian aupallai "finds," literally "falls upon").
Most of the figurative senses had developed in Middle English. Meaning "to be reduced" (as temperature) is from 1650s. To fall in love is attested from 1520s; to fall asleep is late 14c. Fall through "come to naught" is from 1781. To fall for something is from 1903.
c.1200, "a falling;" see fall (n.). Old English noun form, fealle, meant "snare, trap." Sense of "autumn" (now only in U.S.) is 1660s, short for fall of the leaf (1540s). That of "cascade, waterfall" is from 1570s. Wrestling sense is from 1550s. Of a city under siege, etc., 1580s. Fall guy is from 1906.
: This your first fall, ain't it?/ Another fall meant a life sentence (1893+)verb