Английский разговорный словарь (основной) - persevere
Persevere
persevere
ˌpə:sɪˈvɪə v.intr. (often foll. by in, at, with) continue steadfastly or determinedly; persist. [ME f. OF perseverer f. L perseverare persist f. perseverus verystrict (as PER-, severus severe)]