Where does “perfidious” come from?
Perfidious derives from Latin perfidiosus, formed with the suffix -osus from Latin perfidia, which combines Latin fides (faith or trust) with the prefix per- (through), ultimately from Proto-Indo-European bʰeydʰ- (to trust or persuade).
perfidious (English): Of, pertaining to, or representing perfidy;...
Definitions
- Of, pertaining to, or representing perfidy;...
Ancestry of “perfidious”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Latin | perfidiōsus | treacherous, perfidious |
| 2 | Latin | perfidia | faithlessness, dishonesty, treachery, falsehood,... |
| 3 | Latin | perfidus | That breaks his promise; faithless, false,... |
| 4 | Latin | per | through, by means of; throughout, during |
| 5 | Latin | Ad | toward, to |
| 6 | Latin | illic | he, she, it, yonder, that, overthere; in that... |
| 7 | Latin | ille | that; those; "; demonstrative pronoun "; that... |
| 8 | Latin | olle | Archaic form of ille |
| 9 | Proto-Italic | *olnos | that |