early 15c., denunciacioun, "act of declaring or stating something" (a sense now obsolete), from Latin denunciacionem / denuntiationem (nominative denuntiatio), noun of action from past-participle stem of denuntiare "to announce, proclaim; denounce, menace; command, order," from de "down" (see de-) + nuntiare "proclaim, announce," from nuntius "messenger" (from PIE root *neu- "to shout"). Meaning "a charge, a solemn or formal declaration accompanied by a menace" is mid-15c.

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").

"of or characteristic of a declamation," 1580s, from Latin declamatorius "pertaining to the practice of speaking," from declamatus, past participle of declamare "to practice public speaking, to bluster," from de-, here perhaps an intensive prefix (see de-) + clamare "to cry, shout" (from PIE root *kele- (2) "to shout").

1540s, "act of shouting or applauding in approval," from Latin acclamationem (nominative acclamatio) "a calling, exclamation, shout of approval," noun of action from past-participle stem of acclamare "to call to, cry out at, shout approval or disapproval of," from assimilated form of ad "to, toward" (see ad-) + clamare "cry out," from PIE root *kele- (2) "to shout." As a method of spontaneous approval of resolutions, etc., by unanimous voice vote, by 1801, probably from the French Revolution.

noisy, vociferous," c. 1400, from Medieval Latin clamorosus, from Latin clamor "a shout" (see clamor (n.)). Related: Clamorously; clamorousness.

c. 1400, disclaimen, "renounce, relinquish, or repudiate a legal claim," originally in a feudal sense, from Anglo-French disclaimer(c. 1300), Old French desclamer "disclaim, disavow," from des- (see dis-) + clamer "to claim," from Latin clamare "to cry out, shout, proclaim," from PIE root *kele- (2) "to shout." Meaning "disavow any connection with, reject as not belonging to oneself" is from 1590s. Related: Disclaimed; disclaiming.

1962, vulgar or working class pronunciation of hoy a call or shout to attract attention (compare ahoy).

c. 1400, from Latin vociferationem (nominative vociferatio), "a loud calling, clamor, outcry," noun of action from past-participle stem of vociferari "to shout, yell, cry out" (see vociferous).