Strong’s Greek
G2900 — krataios
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
κραταιός
krataios — pronounced krat-ah-yos'
from 2904; powerful:--mighty. see GREEK for 2904
1 occurrence in the KJV.
1 Peter 5:6
Humble yourselves therefore under the mighty hand of God, that he may exalt you in due time: