stultify

v. t. [ imp. & p. p. Stultified p. pr. & vb. n. Stultifying ] [ L. stultus foolish + -fy. ] 1. To make foolish; to make a fool of; as, to stultify one by imposition; to stultify one's self by silly reasoning or conduct. Burke. [ 1913 Webster ]

2. To regard as a fool, or as foolish. [ R. ] [ 1913 Webster ]

The modern sciolist stultifies all understanding but his own, and that which he conceives like his own. Hazlitt. [ 1913 Webster ]

3. (Law) To allege or prove to be of unsound mind, so that the performance of some act may be avoided. [ 1913 Webster ]