FROM STRONG’S GREEK DICTIONARY (1890)

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

aparabatos ἀπαράβατος — ap-ar-ab'-at-os — from 1 (as a negative particle) and a derivative of 3845; not passing away, i.e. untransferable (perpetual):-- unchangeable.

see GREEK for 1

see GREEK for 3845