Where does “fido” come from?

fido (Italian) comes from Italian fidare, from Vulgar Latin fidare, from Latin fīdō, from Proto-Italic feiðō, from Proto-Indo-European bʰéydʰeti, from Proto-Indo-European bʰeydʰ- — to compel, force; to trust.

fido (Italian): faithful, loyal; A credit concession;...

Definitions

  1. faithful, loyal; A credit concession;...

Ancestry of “fido”, step by step

fido traces back through two separate lines of ancestry.

via Italian fidare

StepLanguageWordMeaning
1Italianfidareto entrust something to someone; see affidare; to...
2Vulgar Latinfidare—
3Latinfīdōto trust, put confidence in
4Proto-Italicfeiðōto trust
5Proto-Indo-Europeanbʰéydʰetito trust
6Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust

via Latin fīdus

StepLanguageWordMeaning
1Latinfīdustrusty, trustworthy, dependable, credible
2Latinfindōto cleave, break up, separate, divide, split, part
3Proto-Italicfindōsplit, cleave
4Proto-Indo-Europeanbʰeyd-to split
5Proto-Indo-Europeanbʰey-bee

Words derived from “fido”

Every word from Proto-Indo-European bʰeydʰ- →Every word from Proto-Indo-European bʰéydʰeti →Every word from Proto-Italic feiðō →