LSJ
α, ον, and ος, ον E. HF 395 (lyr.); (< ἕσπερος); of Time, towards evening, Hom., esp. in Od., usu. with Verbs, ἑ. δ’ εἰς ἄστυ… κάτειμι Od. 15.505 ; ἑσπερίους ἀγέρεσθαι ἀνώγει 2.385 ; ἀπονέεσθαι ἑ. 9.452 ; ἑ. φλέγεν Pi. N. 6.38 ; ἑσπερίῃσι (sc. ὥραις) at eventide, Opp. C. 1.138, cf. Man. 2.422 ; ἄχρι ἑσπερίου (sc. χρόνου) Arist. HA 619b21 (v. ἀκρέσπερος); ἑ. ἀοιδαί songs sung at even, Pi. P. 3.19 ; in late Prose, ἑσπέριος [γένεσις] Vett.Val. 72.21. of Place, western, ἠὲ πρὸς ἠοίων ἦ ἑ. ἀνθρώπων Od. 8.29, cf. E. l.c. ; ἔριφοι Theoc. 7.53 ; ἅλς Arat. 407, cf. Call. Fr. 443 ; τὰ ἑ.
the western parts, Th. 6.2, Plu. Ant. 30 ; ἀφ’ ἑσπερίης (sc. χώρης) from the west, IG 14.1020.
Ἑσπέριος, ὁ, = Ἕσπερος, the star, Gal. 17(1).16. (Ϝεσπ, cf. Ϝεσπάριοι, of the Western Locrians, IG 9(1).334 (v BC), Lat. vesper.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)