prevail
v.
c.1400, "be successful; be efficacious," from Old French prevaleir (Modern French prévaloir) and directly from Latin praevalere "be stronger, have greater power," from prae "before" (see pre-) + valere "have power, be strong" (see valiant). Spelling in English perhaps influenced by avail. Related: Prevailed; prevailing.
〔李〕[pre-;vail] v.胜，压倒，占优势； 盛行，流行； 说服 ←val,vail (L valere,valitum)=to be worth or strong 价值，强壮