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Origin and history of irradiant

irradiant(adj.)

1520s, from Latin irradiantem (nominative irradians), present participle of irradiare "to shine forth" (see irradiate). Related: Irradiantly.

also from 1520s

Entries linking to irradiant

irradiate(v.)

c. 1600, "to cast beams of light upon," from Latin irradiatus, past participle of irradiare "shine forth, beam upon, illumine," from assimilated form of in- "into, in" (from PIE root *en "in") + radiare "to shine" (see radiate (v.)). Meaning "expose to radiation other than light" (originally X-rays) is from 1901. Related: Irradiated; irradiating.

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    1851, "ancient wall inscriptions found in the ruins of Pompeii," from Italian graffiti, plural of graffito "a scribbling," a diminutive formation from graffio "a scratch or scribble," from graffiare "to scribble," ultimately from Greek graphein "to scratch, draw, write" (see -gra
    theology
    mid-14c., "the science of religion, study of God and his relationship to humanity," from Old French theologie "philosophical study of Christian doctrine; Scripture" (14c.), from Latin theologia, from Greek theologia "an account of the gods," from theologos "one discoursing on the
    control
    early 15c., countrollen, "check the accuracy of, verify; regulate," from Anglo-French contreroller "exert authority," from Medieval Latin contrarotulus "a counter, register," from Latin contra "against" (see contra) + rotulus, diminutive of rota "wheel" (see roll (n.)). The word
    native
    late 14c., natif, "natural, inborn, hereditary, connected with something in a natural way," from Old French natif "native, born in; raw, unspoiled" (14c.) and directly from Latin nativus "innate, produced by birth," from natus, past participle of nasci (Old Latin gnasci) "be born
    tacit
    c. 1600, "unspoken, noiseless, wordless; saying nothing, silent," by 1630s as "silently indicated or implied (in tacit approving), from French tacite and directly from Latin tacitus "that is passed over in silence, done without words, assumed as a matter of course, silent," past
    tablet
    c. 1300, "small, portable slab of durable material, often covered in wax in which writing was incised; flat surface for an inscription" (originally especially the two Mosaic tables of stone), from Old French tablete "small table, merchant's display counter" (13c., Modern French t
    rapport
    1660s, "reference, relation, relationship," from French rapport "bearing, yield, produce; harmony, agreement, intercourse," back-formation from rapporter "bring back; refer to," from re- "again" (see re-) + apporter "to bring," from Latin apportare "to bring," from ad "to" (see a
    cosmos
    c. 1200, "the universe, the world" (but not popular until 1848, when it was taken as the English equivalent to Humboldt's Kosmos in translations from German), from Latinized form of Greek kosmos "order, good order, orderly arrangement," a word with several main senses rooted in t
    knockoff
    also knock-off, "cheap imitation," 1966, from the verbal phrase knock off "do hastily" (1817), in reference to the casual way the things are made. The verbal phrase knock off is attested from 1640s as "desist, stop" (work, study, etc.), hence knockoff (n.) "act of leaving work" (
    Platonic
    1530s, "of or pertaining to Greek philosopher Plato" (429 B.C.E.-c. 347 B.C.E.), from Latin Platonicus, from Greek Platōnikos. The name is Greek Platōn, a nickname in reference to his broad shoulders (from platys "broad;" from PIE root *plat- "to spread"); his original name was A

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