perfidus: all forms
perfidus means “faithless, treacherous”. Below is its full declension in Latin.
Positive
| Masculine | Feminine | Neuter | Forms | |
|---|---|---|---|---|
| Nominative | perfidus | perfida | perfidum | |
| Genitive | perfidi | perfidae | perfidi | |
| Dative | perfido | perfidae | perfido | |
| Accusative | perfidum | perfidam | perfidum | |
| Ablative | perfido | perfida | perfido | |
| Vocative | perfide | perfida | perfidum |
| Masculine | Feminine | Neuter | Forms | |
|---|---|---|---|---|
| Nominative | perfidi | perfidae | perfida | |
| Genitive | perfidorum | perfidarum | perfidorum | |
| Dative | perfidis | |||
| Accusative | perfidos | perfidas | perfida | |
| Ablative | perfidis | |||
| Vocative | perfidi | perfidae | perfida |
Meaning and examples of perfidus
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.