Blas·pheme v. t. [imp. & p. p. Blasphemed p. pr. & vb. n. Blaspheming.]
 1. To speak of, or address, with impious irreverence; to revile impiously (anything sacred); as, to blaspheme the Holy Spirit.
 So Dagon shall be magnified, and God,
 Besides whom is no god, compared with idols,
 Disglorified, blasphemed, and had in scorn.   --Milton.
    How long, O Lord, holy and true, dost thou not judge and avenge thyself on all those who thus continually blaspheme thy great and all-glorious name?   --Dr. W. Beveridge.
 2. Figuratively, of persons and things not religiously sacred, but held in high honor: To calumniate; to revile; to abuse.
    You do blaspheme the good in mocking me.   --Shak.
 Those who from our labors heap their board,
 Blaspheme their feeder and forget their lord.   --Pope.