Really?
Romans 8:15 For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.
Galatians 4:5 To redeem them that were under the law, that we might receive the adoption of sons.
Ephesians 1:5 Having predestinated us unto the adoption of children by Jesus Christ to himself, according to the good pleasure of his will,
In Romans 8:15 the word adoption is the Greek uihothesia.
G5206
υἱοθεσία
uihothesia
hwee-oth-es-ee'-ah
From a presumed compound of G5207 and a derivative of G5087
G5207
υἱός huiós, hwee-os'; apparently a primary word; a "son" (sometimes of animals), used very widely of immediate, remote or figuratively, kinship:—child, foal, son.
G5087
τίθημι títhēmi, tith'-ay-mee; a prolonged form of a primary θέω théō theh'-o (which is used only as alternate in certain tenses); to place (in the widest application, literally and figuratively; properly, in a passive or horizontal posture, and thus different from G2476, which properly denotes an upright and active position, while G2749 is properly reflexive and utterly prostrate):—+ advise, appoint, bow, commit, conceive, give
5207 son + 5087 conceive