Strong’s Greek
G1838 — hexis
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἕξις
hexis — pronounced hex'-is
from 2192; habit, i.e. (by implication) practice:--use. see GREEK for 2192
1 occurrence in the KJV.
Hebrews 5:14
But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.