perseverus
Perseverus is a Latin adjective meaning persevering, persistent, or steadfast. In classical Latin it functioned as a descriptive quality, applied to persons or things characterized by endurance through hardship. The term is formed from per- "through" and severus "severe," conveying the sense of enduring through adversity. As with other Latin adjectives, it could be used attributively and declined according to gender and case.
As a proper name, Perseverus appears sporadically in Latin texts and more commonly in later Latin as