Etymology

infinity

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Today it means: Endlessness, unlimitedness, absence of a beginning, end or limits to size. Full definition →

Middle English infinite ← Old French infinité ← Latin īnfīnitās
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The story

  1. Latin · derived fromīnfīnitās“unlimitedness”
  2. Old French · derived frominfinité
  3. Middle English · inherited frominfinite
  4. English todayinfinity

From Middle English infinite, from Old French infinité, from Latin īnfīnitās (“unlimitedness”), from negative prefix in- (“not”), + fīnis (“end”), + noun of state suffix -tās. By surface analysis, infinite + -ity.

Words from the same roots

Middle Englishinfinite all →

Old Frenchinfinité all →

Latinīnfīnitās all →

Etymology from Wiktionary, CC BY-SA 4.0.