Answer: stultify

AnswerCrossword Clue
STULTIFYMake a fool of
STULTIFYThwart
STULTIFYMake worthless.
stultifyCause to lose enthusiasm and initiative, esp. as a result of a tedious or restrictive routine
stultifyto cause to appear absurd
stultifyto make, or cause to appear, foolish or ridiculous.
stultifyCause (someone) to appear foolish or absurd