Abbott-Smith Manual Greek Lexicon
υἱοθεσία (G5206)
5 *† υἱοθεσία , -ας, ἡ (cf. the cl. phrases, υἱὸν τίθεσθαι, θετὸς υἱός ), freq. in Inscr. (v. Deiss., BS , 239), adoption of a son (or daughter); metaph., of God's relation established with Israel: Ro 9:4 ; with Christians: Ro 8:15 , Ga 4:5 , Eph 1:5 ; of its consummation, Ro 8:23 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain