apotheosis [əˌpɒθiˈoʊsɪs] n.
1.) The action of ranking, or fact of being ranked, among the gods; transformation into a god, deification; divine status.
2.) By extension: The ascription of extraordinary, and as it were divine, power or virtue; glorification, exaltation; the canonization of saints.
3.) The deification, glorification, or exaltation of a principle, practice, etc.; a deified ideal.
4.) In loose usage: Ascension to glory, departure or release from earthly life; resurrection (O.E.D. 2nd Ed.).
Etymology: Late Latin apotheosis, from Greek ἀποθέωσις, to deify: ἀπό-, change; + θεός, god.
"A regular custom was introduced, that on the decease of every emperor who had neither lived nor died like a tyrant, the senate by a solemn decree should place him in the number of the gods: and the ceremonies of his apotheosis were blended with those of his funeral" (The History of the Decline and Fall of the Roman Empire Vol. I, Edward Gibbon, 1776).