c. 1500, "resplendent" (obsolete), from Latin flagrantem (nominative flagrans) "burning, blazing, glowing," figuratively "glowing with passion, eager, vehement," present participle of flagrare "to burn, blaze, glow," from Proto-Italic *flagro- "burning" (source also of Oscan flagio-, an epithet of Iuppiter), corresponding to PIE *bhleg-ro-, from *bhleg- "to shine, flash, burn" (source also of Greek phlegein "to burn, scorch," Latin fulgere "to shine"), from root *bhel- (1) "to shine, flash, burn." Sense of "glaringly offensive, scandalous" (rarely used of persons) first recorded 1706, probably from common legalese phrase flagrante delicto "while the crime is being committed, red-handed," literally "with the crime still blazing." Related: Flagrantly.
late 14c., exclamacioun, "a calling or crying aloud; that which is uttered with emphasis or passion, a vehement speech or saying," from Latin exclamationem (nominative exclamatio) "an exclamation" (in rhetoric), "a loud calling or crying out," noun of action from past-participle stem of exclamare "cry out loud" (see exclaim).
The punctuation symbol known as the exclamation point (1824) or exclamation mark (1926) was earliest called an exclamation note or note of exclamation (1650s); Shakespeare has note of admiration (1611). Another name for it was shriek-mark (1864). The mark itself is said to date to c. 1400 among writers in Italy and to represent the Latin io!, an exclamation of delight or triumph, written with the -i- above the -o-.
"a public address; a formal, vehement, or passionate address;" also "any formal or pompous speech; a declamation; a tirade," mid-15c., arang, Scottish (in English from c. 1600), from French harangue "a public address" (14c.), from Old Italian aringo "public square, platform; pulpit; arena," from a Germanic source such as Old High German hring "circle" (see ring (n.1)) on the notion of "circular gathering," with an -a- inserted to ease Romanic pronunciation of Germanic hr- (compare hamper (n.1)).
But Watkins and Barnhart suggest a Germanic compound, *harihring "circular gathering, assembly," literally "host-ring, army-ring," with first element *hari- "war-band, host" (see harry (v.)). From the same Germanic "ring" root via Romanic come rank (n.), range (v.), arrange.
c. 1200, kene, from Old English cene "bold, brave, fearless," in later Old English "clever, prudent, wise, intelligent," common Germanic (cognate with Old Norse kænn "skillful, wise," Middle Dutch coene "bold," Dutch koen, Old High German kuon "pugnacious, strong," German kühn "bold, daring"), but according to OED there are no cognates outside Germanic and the original meaning is "somewhat obscure"; it seem to have been both "brave" and "skilled." Perhaps the connection notion was "to be able" and the word is connected to the source of can (v.1).
Sense of "eager (to do something), vehement, ardent" is from c. 1300. The physical meaning "sharp, sharp-pointed, sharp-edged" (c. 1200) is peculiar to English. Extended senses from c. 1300: Of sounds, "loud, shrill;" of cold, fire, wind, etc. "biting, bitter, cutting." Of eyesight c. 1720. A popular word of approval in teenager and student slang from c. 1900. Keener was 19c. U.S. Western slang for a person considered sharp or shrewd in bargaining.
mid-13c., "yell (something) out, utter" (transitive); c. 1300, "beg, implore; speak earnestly and loudly; advertise by calling out," from Old French crier, from Vulgar Latin *critare, from Latin quiritare "to wail, shriek" (source of Italian gridare, Old Spanish cridar, Spanish and Portuguese gritar), which is of uncertain origin.
Perhaps it is a variant of quirritare "to squeal like a pig," from *quis, echoic of squealing. Ancient folk etymology explained it as "to call for the help of the Quirites," the Roman constabulary.
The meaning was extended 13c. to the sense "shed tears" that had formerly been in weep, which it largely replaced by 16c., via the notion of "utter a loud, vehement, inarticulate sound." To cry (one's) eyes out "weep inordinately" is by 1704.
Most languages, in common with English, use the general word for "cry out, shout, wail" to also mean "weep, shed tears to express pain or grief." Romance and Slavic, however, use words for this whose ultimate meaning is "beat (the breast)," compare French pleurer, Spanish llorar, both from Latin plorare "cry aloud," but probably originally plodere "beat, clap the hands." Also Italian piangere (cognate with French plaindre "lament, pity") from Latin plangere, originally "beat," but especially of the breast, as a sign of grief. Related: Cried; crying.