Strong's #2901: krataioo (pronounced krat-ah-yo'-o)

from 2900; to empower, i.e. (passively) increase in vigor:--be strengthened, be (wax) strong.

Thayer's Greek Lexicon:

́

krataioō

1) to strengthen, make strong

2) to be made strong, to increase in strength, to grow strong

Part of Speech: verb

Relation: from G2900

Citing in TDNT: 3:912, 466

Usage:

This word is used 4 times:

 

Luke 1:80: "child grew, and waxed strong in spirit, and was in"
Luke 2:40: "child grew, and waxed strong in spirit, filled with wisdom: and"
1 Corinthians 16:13: "the faith, quit you like men, be strong."
Ephesians 3:16: "riches of his glory, to be strengthened with might by his Spirit"