Lewis Short
(v. a.adv.) : nāvo, āvi, ātum, 1, v. a.navus
* To do, perform, or accomplish a thing with zeal and diligence (class.): nemo est tam afflictus, quin possit navare aliquid et efficere,Cic. Fam. 6, 1, 7: navare operam alicui, to come to one's assistance, to serve or assist one: utinam potuissem tibi operam meam studiumque navare,id. ib. 15, 12, 2: operam rei publicae,id. ib. 10, 25, 2; cf. id. Att. 1, 17, 4: jam mihi videor navāsse operam, quod huc venerim,to have succeeded in my endeavors,id. de Or. 2, 7, 26: fortiter in acie navare operam,to act vigorously,Liv. 7, 16; 28, 35: navandae operae avidior,Tac. A. 3, 42; for which: opus navare,Val. Fl. 3, 144: quam vellem Bruto studium tuum navare potuisses!to show, exhibit,Cic. Att. 15, 4, 5; cf.: si suffragandi studia non navant,id. Q. Cic. Petit. Cons. 5, 18: benevolentiam,id. Fam. 3, 10, 3: bellum,to prosecute vigorously,Tac. H. 3, 25: flagitium,to commit, perpetrate,id. ib. 4, 59: rem publicam,to serve the state,Cic. Fam. 9, 2, 5 (dub.; B. and K. gubernare).—Hence, adv.: nā-vanter, with zeal, Cassiod. Var. 2, 23 al.
Charlton T. Lewis, Charles Short, A Latin Dictionary