perfidus

Mane (Îngilîzî)

1. (adjective, declension-1, declension-2) that breaks one's promise; false; faithless; dishonest; disloyal; deceitful
2. (adjective, broadly, declension-1, declension-2) treacherous; unsafe; dangerous

Hevwate

periculosus

perīculōsus

Werger

perfide

pericoloso

perfidious

dangereux

hasardeux

pericolosa

perilous

gewagt

perillós

treasonous

périlleux

redoutable

gefährlich

risqué

arrischiato

Wekî (IPA) tê bilêvkirin

[ˈpɛr.fɪ.dʊs]

Etîmolojî (Îngilîzî)

From per (“through; along”) + fidēs (“faith; trust”) + -us (adjectival suffix), based on the phrase per fidem dēcipere (“to deceive through faith”).