Where does “unperfidious” come from?

unperfidious (English) comes from English perfidious, from Latin perfidiōsus, from Latin perfidia, from Latin perfidus, from Latin per, from Latin Ad, from Latin illic, from Latin ille — that.

unperfidious (English): Not perfidious

Definitions

  1. Not perfidious

Ancestry of “unperfidious”, step by step

unperfidious traces back through two separate lines of ancestry.

via English perfidious

StepLanguageWordMeaning
1EnglishperfidiousOf, pertaining to, or representing perfidy;...
2Latinperfidiōsustreacherous, perfidious
3Latinperfidiafaithlessness, dishonesty, treachery, falsehood,...
4LatinperfidusThat breaks his promise; faithless, false,...
5Latinperthrough, by means of; throughout, during
6LatinAdtoward, to
7Latinilliche, she, it, yonder, that, overthere; in that...
8Latinillethat; those; "; demonstrative pronoun "; that...
9LatinolleArchaic form of ille
10Proto-Italic*olnosthat

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Italic *olnos
unperfidious — Etymology, Origin & Word History | Etymology Explorer