idiotize

[ id-ee-uh-tahyz ]
/ ˈɪd i əˌtaɪz /

verb (used with object), id·i·ot·ized, id·i·ot·iz·ing.

to make a fool of; make idiotic.
Also especially British, id·i·ot·ise.

Origin of idiotize

First recorded in 1710–20; idiot + -ize