Where does “fides” come from?

fides (Latin) comes from Proto-Italic feiðos, from Proto-Indo-European bʰeydʰos, from Proto-Indo-European bʰeydʰ- — to compel, force; to trust.

Ancestry of “fides”, step by step

fides traces back through 3 separate lines of ancestry.

via Proto-Italic feiðos

StepLanguageWordMeaning
1Proto-Italicfeiðosfaithful, reliable
2Proto-Indo-Europeanbʰeydʰosfaithful, trustworthy
3Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust

via Proto-Indo-European bʰidʰ-

StepLanguageWordMeaning
1Proto-Indo-Europeanbʰidʰ-to command; pot, bucket, barrel

via Ancient Greek σφίδη

StepLanguageWordMeaning
1Ancient Greekσφίδη

Words derived from “fides

Every word from Proto-Indo-European bʰeydʰ-