σθενόω (sthenóōsthen-o'-overbto strengthen)
[Grk] σθενόω LN: 74.14 GK: G4964
Derivation: from σθένος (bodily vigor;
Strong's: probably akin to the base of ἵστημι); to strengthen, i.e. (figuratively) confirm (in spiritual knowledge and power)
KJV: --strengthen.
See: ἵστημι