Etymology

equiprobable

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Today it means: Having equal probability, such as any number from 1 to 6 being the equiprobable outcome of the fair toss of fair dice. Full definition →

English probable ← Latin aequi- ← Old Latin aiquos
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The story

  1. Proto-Italic*aikʷos?
  2. Old Latinaiquos
  3. Latinaequus
  4. Latinaequi-
  5. Englishequi-
  6. Englishprobable
  7. English todayequiprobable

From equi- + probable.

Etymology from Wiktionary, CC BY-SA 4.0.