"a loud call, a vehement and sudden cry," also sometimes "clamor, uproar;" mid-14c., from shout (v.).
late 14c., "a great outcry," also figurative, "loud or urgent demand," from Old French clamor "call, cry, appeal, outcry" (12c., Modern French clameur), from Latin clamor "a shout, a loud call" (either friendly or hostile), from clamare "to cry out" (from PIE root *kele- (2) "to shout").
"to cry feebly," c. 1600, imitative of a cat or a child. Related: Mewled; mewling.
late Old English, scræmen, scremen, "utter a piercing cry, cry out with a shrill voice," a word of uncertain origin, similar to words in Scandinavian, Dutch, German, and Flemish (such as Old Norse skræma "to terrify, scare away," skramsa "to scream;" Swedish scrana "to scream," Middle Dutch schremen, scremen, Dutch schreijen "cry aloud, shriek," Old High German scrian, German schreien "to cry"). Related: Screamed; screaming.
Of inanimate things by 1784 (fiddle music). The sense of "communicate (something) strongly" is by 1957. Screaming meemies is World War I army slang, originally a soldiers' name for a type of German artillery shell that made a loud noise in flight (from French woman's name Mimi), extended to the battle fatigue caused by long exposure to enemy fire.
Middle English neighen, from Old English hnægan "to neigh, utter the cry of a horse," probably of imitative origin (compare Old Norse gneggja "to neigh," Middle High German negen, French hennir, Japanese inanaki). In Middle English also nyghe, neyen, nyen, nayʒen. Related: Neighed; neighing. As a noun, "the cry of a horse, a whinnying," from 1510s.