Lewis Short
(adverb) : prō-tĭnus (less properly prō-tĕnus), tenus
* Before one's self, forward, farther on, onward.
* Lit. (rare but class.; syn.: statim, continuo, actutum): praecepisse, ut pergeret protinus, quid retro atque a tergo fieret, ne laboraret,Cic. Div. 1, 24, 49: ipse capellas Protinus aeger ago, drive along before me, Verg. E. 1, 13: quā (voce) protinus omne Contremuit nemus,far and wide,id. A. 7, 513.
* Transf.
* Right on, continuously, constantly, uninterruptedly (rare; not in Cic.).
* In space, Plin. Ep. 5, 6, 19: trans Lygios Gothones regnantur . . . protinus deinde ab Oceano Rugii et Lemovii,Tac. G. 43 fin.: summa (vertebra) protinus caput sustinet,Cels. 8, 1.
* Forthwith, immediately, directly, from the very first, instantly, on the spot (class.; but rare in prose until post-Aug. per.): oratio protinus perficiens auditorem benevolum,at the very outset,Cic. Inv. 1, 15, 20: hostes protinus ex eo loco ad flumen contenderunt,Caes. B. G. 2, 9: tu protinus unde Divitias aerisque ruam, dic, augur, acervos,Hor. S. 2, 5, 21.—With a negative: non protinus,not immediately,Quint. 10, 1, 3.—With ex or ab, immediately or directly after: ex fugā protinus auxilia discesserunt,Caes. B. G. 5, 17: protinus ab ipsā curatione,Cels. 7, 26, 5: a partu,Plin. 20, 21, 84, § 226: ab adoptione,Vell. 2, 104, 3; cf.: protinus post cibum,Cels. 7, 26, 26.—With ut, quam, atque, as soon as, as soon as ever; with ut: protinus ut percussus est aliquis,Cels. 5, 26, 26; Val. Max. 5, 4, 4; Quint. 1, 1, 3.—With quam, Plin. 10, 28, 40, § 75 (al. quā); 15, 17, 18, § 67.—With atque, Sol. 46 fin.—Prov.: Protinus ad censum, de moribus ultima flet quaestio,Juv. 3, 140.
Charlton T. Lewis, Charles Short, A Latin Dictionary