re-viresco, rui, 3, v. inch. n., to become or grow green again; to recover its verdure. Lit. (rare): laesae silvae, Ov. M. 2, 408: arbor Ruminalis in novos fetus, Tac. A. 13, 58: caepe revirescit decedente lunā, contra autem inarescit adulescente, Gell. 20, 8, 17.

— Poet., transf., of an old man, to become young again: spes est virginibus subjecta, Arte suum parili revirescere posse parentem, Ov. M. 7, 305: pars credunt torvos patriā revirescere vultus, Sil. 15, 134.

— Trop., to grow strong or vigorous again; to grow young again; to be renewed; to flourish again; to revive (freq. and class.): aliquando rei publicae vires, quae malitiā nocentum exaruerunt, virtute optimatium revirescent, Auct. Her. 4, 34, 45; cf.: quamquam sunt accisae (res), tamen efferent se aliquando et ad renovandum bellum revirescent, Cic. Prov. Cons. 14, 34; id. Phil. 7, 1, 1: cum semel invasit senectus, regressum non habet, nec revirescere aut repubescere potest, Col. 2, 1, 4; Flor. prooem. fin.: imperium, Curt. 10, 9, 5: domus Germanici, Tac. A. 4, 12: partes, id. H. 3, 7 fin.: dux pignore promissae laudis, Sil. 8, 228: nunc praeclari facti decus crebrā memoriā revirescit, Val. Max. 4, 8, 4.