Greek word
epischýō
ἐπισχύω
What it means
to avail further, i.e. insist stoutly
to avail further, i.e. (figuratively) insist stoutly
Where it comes from
from epí (ἐπί) and ischýō (ἰσχύω)
How the King James translates it
Every place it appears 1
Luke23:5