FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

apeirastos ἀπείραστος — ap-i'-ras-tos — from 1 (as a negative particle) and a presumed derivative of 3987; untried, i.e. not temptable:--not to be tempted.

see GREEK for 1

see GREEK for 3987