Lewis & Short

1. prorsus (collat. form prōsus, Plaut. Trin. 3, 3, 2; Enn. ap. Non. 165, 11; Trag. Rel. p. 28 Rib.; but p. 107 Vahl. reads prorsus), adv. [for pro-versus].

  1. I. Forwards (ante-class.): non prorsus, verum transvorsus cedit, quasi cancer solet, Plaut. Ps. 4, 1, 45.
  2. II. Straight on, right onwards, directly (ante- and post-class.), Cato ap. Fest. p. 234 Müll.: tunc Arionem prorsus ex eo loco Corinthum petivisse, Gell. 16, 19, 17.
    1. B. Trop.
      1. 1. Straightway, by all means, certainly, truly, precisely, utterly, absolutely (class.): prorsus perii, Plaut. Aul. 2, 8, 27: vide ne ille huc prorsus se inruat, Ter. Ad. 4, 2, 11; 3, 2, 26: prorsus tacere nequeo, id. Hec. 4, 4, 51: ita prorsus existimo, Cic. Tusc. 2, 5, 14: nullo modo potest fleri prosus, Plaut. Trin. 3, 3, 2: nullo modo prorsus assentior, Cic. N. D. 3, 8, 21; id. Att. 13, 45, 1: verbum prorsus nullum intellego, not a single word, id. de Or. 2, 14, 61: venies exspectatus non solum nobis, sed prorsus omnibus, id. Fam. 4, 10, 1: affatim prorsus, id. Att. 16, 1, 5: prorsus vehementer et severe, id. ib. 16, 15, 2: hoc mihi prorsus valde placet, id. Fam. 6, 20, 2; Plin. 14, 5, 7, § 58.
        Ironically: grati prorsus conjugibus revertemur, Curt. 5, 5, 13.
      2. 2. Exactly, just, precisely: set ea prorsus opportuna Catilinae, Sall. C. 16, 5; Varr. L. L. 6, § 16 dub.; v. Müll. ad h. l.: prorsus quasi, precisely as if, Just. 1, 7, 16.
      3. 3. After an enumeration of particulars, in short, in fine, in a word: igitur colos exsanguis, foedi oculi: citus modo, modo tardus incessus; prorsus in facie vultuque vecordia inerat, Sall. C. 15, 5; 25, 5; id. J. 23, 1; 30, 3 al.