η, ον (so Att. Inscrr., Ar. Nu. 1134, Pl. Cra. 409b; in codd. freq. written ἔνος, as Hes. Op. 770, etc.), belonging to the former of two periods (τὸ ἕνον… · τὸ πρότερον καὶ παρεληλυθὸς δηλοῖ, Harp. ; ἔνην· τὴν παλαιάν, Suid.), ὁ νόμος ἐπὶ Κρόνου ἕνος (opp. νεωστί) Dam. Pr. 348; hence, last year΄s, ἕναι ἀρχαί last year΄s magistrates, D. 25.20, prob. in Arist. Pol. 1322a12; στρατηγοὶ ἕνοι Id. Ath. 4.2; Ἑλληνοταμίαι ἕνοι IG1². 324.26; ἕνης ἐπιφορᾶς ib. 218i38; ἕνος [καρπός] last year΄s fruit, Thphr. HP 3.4.6; also ἕνος ὄνος a year old, BGU 806; generally, old, by-gone, νέον δέ που καὶ ἕνον ἀεί ἐστι περὶ τὴν σελήνην τοῦτο τὸ φῶς Pl. Cra. 409b; — in Ar. Ach. 610 ἤδη πεπρέσβευκας σὺ πολιὸς ὢν ἕνη, the Sch. takes ἕνη as an Adv. = ἐκ πολλοῦ, long ago; but the passage is prob. corrupt. ἕνη καὶ νέα (sc. ἡμέρα) the old and new day, i.e.
the last day of the month, IG1². 374.276, Ar. Nu. 1134sq., Lys. 23.6; first used by Solon, acc. to D.L. 1.57; Σκιροφοριῶνος ἕνῃ καὶ νέᾳ IG2². 916.10, cf. Decr. ap. D. 18.29; ἕνη alone, Hes. Op. 770.
(Cf. Lith. sẽnas ΄old΄, Lat. senex, etc.)

= ἔνος¹ u. ἔνος².