FROM STRONG’S GREEK DICTIONARY (1890)

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

blasphemeo βλασφημέω — blas-fay-meh'-o — from 989; to vilify; specially, to speak impiously:--(speak) blaspheme(-er, -mously, -my), defame, rail on, revile, speak evil.

see GREEK for 989