Strong's #110: athanasia (pronounced ath-an-as-ee'-ah)

from a compound of 1 (as a negative particle) and 2288; deathlessness:--immortality.

Thayer's Greek Lexicon:

̓́

athanasia

1) undying, immortality, everlasting

Part of Speech: noun feminine

Relation: from a compound of G1 (as a negative particle) and G2288

Citing in TDNT: 3:22, 312

Usage:

This word is used 3 times:

 

1 Corinthians 15:53: "this mortal must put on immortality."
1 Corinthians 15:54: "this mortal shall have put on immortality, then shall be brought to pass the saying"
1 Timothy 6:16: "Who only hath immortality, dwelling in the light which no man can approach unto; whom"