Where does “polyfidelitous” come from?

polyfidelitous (English) comes from English fidelitous, from English fidelity, from Middle French fidélité, from Latin fidēlitās, from Latin fidēlis, from Latin fidēs, from Proto-Italic feiðos, from Proto-Indo-European bʰeydʰos — to compel, force; to trust.

polyfidelitous (English): Faithful within a polyamorous relationship

Definitions

  1. Faithful within a polyamorous relationship

Ancestry of “polyfidelitous”, step by step

polyfidelitous traces back through two separate lines of ancestry.

via English fidelitous

StepLanguageWordMeaning
1EnglishfidelitousFaithful; Having high fidelity
2EnglishfidelityFaithfulness to one's duties; Loyalty to one's...
3Middle Frenchfidélité
4Latinfidēlitāsfaithfulness, fidelity
5Latinfidēlisfaithful, loyal
6Latinfidēs
7Proto-Italicfeiðosfaithful, reliable
8Proto-Indo-Europeanbʰeydʰosfaithful, trustworthy
9Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust

via English poly

StepLanguageWordMeaning
1EnglishpolyPolytechnic; Polyethylene; Polyurethane
2LatinpoliumAlternative form of polion
3LatinpolionA strong-smelling plant, perhaps Teucrium...
4Ancient Greekπόλιονfelty germander
5Ancient Greekπολιόςgrey, grizzled, grizzly; bright, clear, serene; a...
6Proto-Hellenicpoľľósgrey
7Proto-Indo-EuropeanpolH-yós
8Proto-Indo-EuropeanpelH-pale, gray
Every word from Proto-Indo-European bʰeydʰ-