FROM STRONG’S GREEK DICTIONARY (1890)

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

diaphtheiro διαφθείρω — dee-af-thi'-ro — from 1225 and 5351; to rot thoroughly, i.e. (by implication) to ruin (passively, decay utterly, figuratively, pervert):--corrupt, destroy, perish.

see GREEK for 1225

see GREEK for 5351