μονογενής, -ές

(μόνος, γένος), [in LXX: Jdg.11:34, Psa.22:20 25:16 35:17 (יָחִיד), Tob.3:15 6:10, 14 8:17, Wis.7:22, Bar.4:16 * ;]

only, only begotten (DCG, ii, 281), of sons and daughters : Luk.7:12 8:42 9:38, Heb.11:17; of Christ, Jhn.3:16, 18, 1Jn.4:9; μ. παρὰ πατρός, Jhn.1:14; μ. θεός, Jhn.1:18.†

(AS)

only; only begotten