Strong’s Greek
G4915 — sunelikiotes
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
συνηλικιώτης
sunelikiotes — pronounced soon-ay-lik-ee-o'-tace
from 4862 and a derivative of 2244; a co-aged person, i.e. alike in years:--equal. see GREEK for 4862 see GREEK for 2244
1 occurrence in the KJV.
Galatians 1:14
And profited in the Jews’ religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers.