Etymology

radiant

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Today it means: Radiating light and/or heat. Full definition →

Middle English radyant ← Latin radiāns
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The story

  1. Latin · derived fromradiāns
  2. Middle English · inherited fromradyant
  3. English todayradiant

From Middle English radyant, from Latin radiāns, radiantis, present participle of radiāre (“to emit rays or beams”).

Etymology from Wiktionary, CC BY-SA 4.0.