出典:Wiktionary
出典:『Wiktionary』 (2026/01/22 19:59 UTC 版)
From perfidia (“perfidy”) + -ōsus (“-ous”), from perfidus (“faithless”) + -ia (“-ness”), from per (“through”) + fidēs (“trust”), from Proto-Indo-European *per + Proto-Italic *feiðos from root *bʰeydʰ-.
perfidiōsus (feminine perfidiōsa, neuter perfidiōsum, comparative perfidiōsior); first/second-declension adjective
First/second-declension adjective.
| singular | plural | ||||||
|---|---|---|---|---|---|---|---|
| masculine | feminine | neuter | masculine | feminine | neuter | ||
| nominative | perfidiōsus | perfidiōsa | perfidiōsum | perfidiōsī | perfidiōsae | perfidiōsa | |
| genitive | perfidiōsī | perfidiōsae | perfidiōsī | perfidiōsōrum | perfidiōsārum | perfidiōsōrum | |
| dative | perfidiōsō | perfidiōsae | perfidiōsō | perfidiōsīs | |||
| accusative | perfidiōsum | perfidiōsam | perfidiōsum | perfidiōsōs | perfidiōsās | perfidiōsa | |
| ablative | perfidiōsō | perfidiōsā | perfidiōsō | perfidiōsīs | |||
| vocative | perfidiōse | perfidiōsa | perfidiōsum | perfidiōsī | perfidiōsae | perfidiōsa | |