adoptionism
A Christian theological doctrine that Jesus was adopted as the Son of God, rather than being pre-existent. Domain-specific term used in religious studies.
Adoptionism is considered one of the heretical doctrines of early Christianity.
From 養子 (adopted child) + 論 (theory, doctrine). The exact historical derivation of the theological term is uncertain; it is a calque or translation of the Western term 'adoptionism'.