κραταιόω (krataióō) — Be Strong

Greek word study: κραταιόω (krataióō), Strong's G2901. to empower, i.e. (passively) increase in vigor— with KJV usage and where it appears on BibleCalcs.

GreekStrong's G2901Updated September 2026
Quick definition
Greek word
κραταιόω (krataióō)

Computer-generated, not a recording of historical speech.

to empower, i.e. (passively) increase in vigor

Word study
Derivation: from G2900 (κραταιός);

KJV translation words: be strengthened, be (wax) strong

Where this word appears on BibleCalcs

→ for the verse this word is drawn from

→ a related word: strengtheneth

About κραταιόω (krataióō)

Krataioō shows up in Paul's short string of commands in 1 Corinthians 16:13 — "stand fast in the faith, quit you like men, be strong." It's a passive verb in the Greek, which is worth noticing: the sense is closer to "be strengthened" or "be made strong" than "strengthen yourself" — strength here is something received, not manufactured.

Strong's definitions are drawn from the 1890 Strong's Exhaustive Concordance (public domain). Digitized dictionary data via the openscriptures/strongs project (CC BY-SA).

Frequently asked questions

What does krataióō (G2901) mean?

To empower, i.e. (passively) increase in vigor.

How is G2901 translated in the KJV?

The KJV translates G2901 as: be strengthened, be (wax) strong.

Where does G2901 appear in the Bible?

See the linked verse page(s) above for the specific passage(s) where this word is used on BibleCalcs.