theosis
The likeness to or union with God; deification.
uncountable
For him, theosis or deification was the destination for human salvation, whose attainment Adam’s sin in Eden had imperilled but not rendered impossible;[…]
The process of attaining this state of union with God.
uncountable
Where it comes from
Learned borrowing from Late Latin theōsis, from Koine Greek θέωσις (théōsis).
Adapted from the Wiktionary entry theosis (CC BY-SA 4.0).