Main Entry: stul·ti·fy

Pronunciation: \ˈstəl-tə-ˌfī\

Function: transitive verb

Inflected Form(s): stul·ti·fied; stul·ti·fy·ing

Etymology: Late Latin stultificare to make foolish, from Latin stultus foolish; akin to Latin stolidus stolid

Date: 1737

1 archaic : to allege or prove to be of unsound mind and hence not responsible
2 : to cause to appear or be stupid, foolish, or absurdly illogical
3 a : to impair, invalidate, or make ineffective : negate b : to have a dulling or inhibiting effect on

— stul·ti·fi·ca·tion \ˌstəl-tə-fə-ˈkā-shən\ noun