athanasia

[ ath-uh-ney-zhuh ]
/ ˌæθ əˈneɪ ʒə /

noun

deathlessness; immortality.
Also a·than·a·sy [uh-than-uh-see] /əˈθæn ə si/.

Origin of athanasia

1820–30; < Greek athanasía, equivalent to athánat(os) deathless ( a- a-6 + thánatos death) + -ia -ia, with ti > si