polyfidelity

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noun

A form of polyamory where all members are considered equal partners and agree to be sexually active only with other members of the group.

OriginEnglish fidelity ← Middle English fidelite ← Ancient Greek πολῠ́ς (polŭ́s) →
Scrabble 24
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Meanings

nounpolyfidelity (uncountable)
  1. uncountableA form of polyamory where all members are considered equal partners and agree to be sexually active only with other members of the group.

Origin

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

From poly- + fidelity.

Full word history & related roots →
Cite this entry
APA

polyfidelity. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/polyfidelity

MLA

“polyfidelity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/polyfidelity. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “polyfidelity,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/polyfidelity.

Source: polyfidelity on Wiktionary, CC BY-SA 4.0.