Lexical Definition

‎ἔτος‎ étos (et'-os) year ^G:N-N
apparently a primary word

year.

• a year

Abbott-Smith

ἔτος, -ους, τό [in LXX for שָׁנֶה ;]
a year: Lk 3:1, He 1:12, Re 20:3, al.; ἔτη ἔχειν, Jo 5:5 8:57; εἶναι, γίνεσθαι, ἐτῶν, Mk 5:42, Lk 2:42, Ac 4:22, I Ti 5:9; dat. pl. of space of time, Jo 2:20, Ac 13:20; acc, in ans. to how long? Mt 9:20, Mk 5:25, Lk 2:36, Ac 7:6, He 3:9, al.; preceded by a prep.: ἀπό, Lk 8:43, Ro 15:23; διά, c. gen. (v.s. διά), Ac 24:17, Ga 2:1; ἐκ, Ac 24:10; εἰς, Lk 12:19; ἐπί, c. acc, Ac 19:10; μετά, c. acc, Ga 1:18 3:17; πρό, c. gen., II Co 12:2; κατ’ ἔτος, yearly, Lk 2:41
SYN.: ἐνιαυτός, q.v.; cf. LS, s.v. ἐνιαυτός

Abbott-Smith References

Liddell-Scott-Jones

ἔτος, εος, τό,

irregular dative ἔτῃ [Refs]:—year, τῶν προτέρων ἐτέων in bygone years, [Refs 8th c.BC+]; τόδ᾽ ἐεικοστὸν ἔ. ἐστὶν ἐξ οὗ[Refs 8th c.BC+]; ἔ. ἐνιαυτῶν, see at {ἐνιαυτό; ἑκάστου ἔτους} [Refs 5th c.BC+]; δι᾽ ἔτους πέμπτου every fifth year, [Refs 5th c.BC+]; κατὰ ἔ. every year, [NT+5th c.BC+]; ἔ. εἰς ἔ. year after year, [Refs 5th c.BC+]; δι᾽ ἔτους annually, [LXX+3rd c.BC+]; παρὰ ἔ. every other year, [Refs 2nd c.AD+]yearly, [Refs 5th c.BC+]; τρίτῳ ἔτεϊ τούτων in the third year after this, [Refs]; frequently in accusative, ἔ. τόδ᾽ ἤδη δέκατον.. βόσκων now for these ten years, [ἔτος 5th-6th c.BC: Plato Philosophus “Respublica” 615c, compare 4th c.BC: Demosthenes Orator 3.4, 33.23 ">Refs 5th c.BC+]; of a person's age, γεγονὼς ἔτη τρία ἀπολείποντα τῶν ἑκατόν [Refs 5th c.BC+]; without γεγονώς, τοὺς ὑπὲρ τετταράκοντα ἔτη [Refs], etc.: in genitive, ἐπειδὰν ἐτῶν ᾖ τις τριάκοντα [Refs 5th c.BC+]; μυρίων ἐτῶν within a period of [Refs]years, [Refs]

__2 regnal year, τὸ πέμπτον ἔ. Δομιτιανοῦ [Refs 2nd c.AD+]. (ϝέτος [Refs 6th c.BC+][same place]; cf. Latin vetus.)

_{LSJ Scripture Refs: Luke.2.41 ☩ LXX.Lev.25.50}