Where does “perfidelis” come from?

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

perfidelis (Latin): very faithful, very loyal

Definitions

  1. very faithful, very loyal

Ancestry of “perfidelis”, step by step

StepLanguageWordMeaning
1Latinfidēs—
2Proto-Italicfeiðosfaithful, reliable
3Proto-Indo-Europeanbʰeydʰosfaithful, trustworthy
4Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust
Every word from Proto-Indo-European bʰeydʰ- →Every word from Proto-Indo-European bʰeydʰos →Every word from Proto-Italic feiðos →