Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

pervĭcācĭter, adv., v. pervicax fin.

pervĭcax, ācis, adj. [per and root vicof vinco],

  1. I. firm, determined; esp. in a bad sense, stubborn, obstinate, headstrong, wilful (not in Cic. or Cæs.): tu pertinaciam esse, Antiloche, hanc praedicas: Ego pervicaciam aio et me uti voloNam pervicacem dici me esse et vincere Perfacile patior: pertinacem nil moror? Att. ap. Non. 432, 32 sq. (Trag. Rel. v. 8 Rib.); cf.: adversus peritos pervicax, Tac. H. 1, 26; Ter. Hec. 4, 1, 17: musa, Hor. C. 3, 3, 70: accusatio, Tac. A. 13, 33; 3, 33: pervicacissimi Latinorum, Flor. 1, 11, 11: pervicacioris irae fuit, Curt. 8, 6, 1: homines pervicaci audaciā, pertinaci spe, App. de Deo Socr. p. 43 fin.
    1. B. Of things, steady, unmoved: contra flatus pervicax libra, Plin. 16, 36, 65, § 161.
  2. II. Transf., in a good sense, steadfast, firm: recti pervicax, constans adversus metus, Tac. H. 4, 5.
    Hence, adv.: pervĭ-cācĭter, stoutly, stiffly, stubbornly, obstinately: pervicaciter perstare, Dig. 26, 10, 3.
    Comp.: pervicacius causam belli quaerere, Liv. 42, 14; Tac. A. 4, 42; 13, 54 fin.