(adj.adv.) : praevălĭdus, a, um, adj.praevaleo
* Very strong (not in Cic. or Caes.).
* Lit.
* Of persons: juvenis,Liv. 7, 5: legiones,Vell. 2, 69, 2: cohortes,Tac. H. 2, 28.
* Trop., very strong, very powerful, prevailing, prevalent.
* Of persons, Tac. A. 3, 35.
* Of things: urbes,Liv. 27, 39: neu (terra) se praevalidam primis ostendat aristis,too strong, bearing too abundantly,Verg. G. 2, 252: nomina equitum,great, imposing,Tac. A. 12, 60 fin.: praevalida et adulta vitia,prevalent,id. ib. 3, 53.—Hence, adv.: praevă-lĭdē, very strongly (post-Aug.), Plin. 17, 14, 24, § 108.

s. TLL