Strong’s Greek
G1840 — exischuo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἐξισχύω
exischuo — pronounced ex-is-khoo'-o
from 1537 and 2480; to have full strength, i.e. be entirely competent:--be able. see GREEK for 1537 see GREEK for 2480
0 occurrences in the KJV.