Strong’s Greek
G3118 — makrochronios
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
μακροχρόνιος
makrochronios — pronounced mak-rokh-ron'-ee-os
from 3117 and 5550; long-timed, i.e. long-lived:--live long. see GREEK for 3117 see GREEK for 5550
1 occurrence in the KJV.
Ephesians 6:3
That it may be well with thee, and thou mayest live long on the earth.