(adj.Subst.) = Ἕσπερος: Hespĕrus or -os, i, m., = (the evening; pure Lat., with the digamma, vesper; hence transf.)
* The evening star, Hesperus; acc. to the myth, the son of Cephalus and Aurora; cf. Hyg. Astr. 2, 42; or, acc. to another myth, the son of Iapetus and Asia, and brother of Atlas; cf. Serv. Verg. A. 1, 530, and 4, 484: infima est quinque errantium terraeque proxima stella Veneris, quae φωσφόρος Graece, Latine dicitur Lucifer, cum antegreditur solem, cum subsequitur autem Hesperos, Cic. N. D. 2, 20, 53: illam non veniens Aurora Cessantem vidit, non Hesperus,Ov. M. 5, 441; id. F. 2, 314; cf. id. ib. 5, 419: ite domum saturae, venit Hesperus, ite capellae,Verg. E. 10, 77.
* Derivv.
* Hespĕrĭus, a, um, adj., of or situated towards the west, western, Hesperian.
* Adj.: corniger Hesperidum fluvius regnator aquarum (Tibris), i. e. Italian (cf. above), Verg. A. 8, 77. —Hence
* Hespĕris, ĭdis, f., of evening or the west, western, Hesperian.
* Subst.
* Hespĕris, ĭdis, f., the queen's gilliflower, Hesperis tristis, Linn.: hesperis noctu magis olet, inde nomine invento,Plin. 21, 7, 18, § 39.
* He-spĕrĭdes, um, f.
* The Hesperides, daughters of Hesperus, or of Erebus and Nox, who, on an island beyond Mount Atlas, watched a garden with golden apples, Varr. R. R. 2, 1, 6; Cic. N. D. 3, 17, 44; Mel. 3, 1, 3; Hyg. Fab. praef.; Ov. M. 11, 114; Lucr. 5, 32: Hesperidum mala, poma,Verg. E. 6, 61; Stat. S. 3, 1, 158: Hesperidum serpens,Juv. 14, 114.
* A group of islands in the Atlantic Ocean, Mel. 3, 10, 3; called also: Hesperidum insulae,Plin. 6, 31, 36, § 201.

Male Personal name
Confirmed occurences in the Roman Empire:

• Hesperus (Masc), ref: PIR H 0165 | PIR ID6944