Strong's #4599: sthenoo (pronounced sthen-o'-o)
from sthenos (bodily vigor; probably akin to the base of 2476); to strengthen, i.e. (figuratively) confirm (in spiritual knowledge and power):--strengthen.
Thayer's Greek Lexicon:
́
sthenoō
1) to make strong, strengthen
1a) of one' s soul
Part of Speech: verb
Relation: from sthenos (bodily vigour, probably akin to the base of G2476)
Usage:
This word is used 1 times:
1 Peter 5:10: "a while, make you perfect, establish, strengthen, settle"