Where does “fidatissimo” come from?

fidatissimo (Italian) comes from Italian fidato, 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.

Ancestry of “fidatissimo”, step by step

StepLanguageWordMeaning
1Italianfidatopast participle of fidare; past participle of...
2Italianfidareto entrust something to someone; see affidare; to...
3Vulgar Latinfidare
4Latinfīdōto trust, put confidence in
5Proto-Italicfeiðōto trust
6Proto-Indo-Europeanbʰéydʰetito trust
7Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust
Every word from Proto-Indo-European bʰeydʰ-