(adj.adv.) : pĕrennis (‡ pĕremnis, Inscr. Ann. p. Chr. 341 ap. Guattani Monum. Inedit. 1, 5, p. 39), e (
* Abl. sing. perenne, Ov. H. 8, 64; id. F. 3, 654), adj. per-annus, that lasts or continues the year through (post-Aug.): aves perennes,that remain with us all the year round,Plin. 10, 25, 36, § 73.
* Transf., everlasting, never failing, unceasing, perpetual, perennial (class.; cf.: jugis, perpetuus): aquae,Cic. Verr. 2, 4, 48, § 107; cf. Liv. 1, 21, 3: fons,Caes. B. G. 8, 43: amnis,Liv. 4, 30: rivi,Plin. Ep. 5, 6, 11: cursus stellarum,Cic. N. D. 2, 21, 56: vinum,i. e. that bears keeping,Col. 3, 2, 10: adamas,Ov. M. 15, 813: monumenta,id. F. 2, 265; of a person: super Astra ferar,id. M. 15, 875.—Comp.: exegi monumentum aere perennius,more lasting, more enduring,Hor. C. 3, 30, 1.
* Trop., unfailing, uninterrupted, continual, perpetual, etc.: lucrum,Plaut. Am. p. 16: perennis et contestata majorum virtus,Cic. Fl. 11, 25: continuata motio et perennis,id. Tusc. 1, 10, 22: loquacitas,id. de Or. 3, 48, 185: animus in rem publicam,id. Prov. Cons. 9, 23.—Hence, adv., in two forms, pĕrenne (post-Aug.) and pĕrennĭter (post-class.).
* Pĕrenne.
* Lit., all the year through, Col. 12, 18, 2.
* Pĕrennĭter, constantly, continually, always, perpetually: arbor frondens perenniter,Aug. Doctr. Christ. 2, 16: perenniter servare amicitias,Sid. Ep. 7, 9; Cod. Th. 7, 20, 2; Sol. 65.

s. TLL