pervĭcācĭa, ae, f. [pervicax],
I firmness , inflexibility; in a bad sense, stubbornness , obstinacy (syn.: pertinacia, perseverantia): avaritia, ambitio, mulierositas, pervicacia, Cic. Tusc. 4, 11, 26: haec pervicacia tua et superbia coëgit me loqui, Liv. 9, 34, 24: Aegyptia, Treb. Poll. Claud. 11, 1.—
II Transf., in a milder signif., firmness , steadiness , steadfastness : tu pertinaciam esse, hanc praedicas, ego pervicaciam aio, Att. ap. Non. 432, 32 sq. (Trag. Rel. v. 4 Rib.; v. the entire passage under pervicax): quantā pervicaciā in hostem, tantā beneficentiā adversus supplices utendum, Tac. A. 12, 20.— Of things: castanea pedamentis omnibus praefertur perdurandi pervicaciā, Plin. 17, 20, 34, § 147.