Etymology

polyfidelity

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Today it means: A form of polyamory where all members are considered equal partners and agree to be sexually active only with other members of the group. Full definition →

English fidelity ← Middle English fidelite ← Ancient Greek πολῠ́ς (polŭ́s)
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Middle Englishfidelite
  6. Englishfidelity
  7. English todaypolyfidelity

From poly- + fidelity.

Etymology from Wiktionary, CC BY-SA 4.0.