Strong's G2902 — κρατέω (verb)
krateo (krat-eh'-o) v.
1. to use strength, i.e. seize or retain
{literally or figuratively}
[from G2904]
KJV: hold (by, fast), keep, lay hand (hold) on, obtain, retain, take (by) 
Root(s): G2904 
Compare: G1840, G2480, G4599 
Hebrew root: κράτος
Occurrences: 47