Abbott-Smith Manual Greek Lexicon
ἐνιαυτός (G1763)
14 ἐνιαυτός , -οῦ, ὁ [in LXX for שָׁנֶה ;] prop., a cycle of time . = ἔτος , a year : Jo 11:49 , 51 18:13 , Ac 11:26 18:11 , Ja 5:17 , Re 9:15 ; pl., of sabbatical years, Ga 4:10 ; ποιεῖν ἐ. , to spend a year, Ja 4:13 ; ἅπαξ τοῦ ἐ. , He 9:7 ; κατ' ἐ. , He 9:25 10:1 , 3 ; ἐ. δεκτόν , Lk 4:19 (LXX) .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain