The Word -Stultify

Yorvet tossed the rope to one of his followers, with orders "Take him to the other horses, but tie him up separate. I'll deal with him after I stultify to the comptroller that I have no idea where the noble's son is."
Kolton reared back, in denial, fighting as the man, a beefy guy who smelt like he hadn't washed in a decade pulled him easily across the dirt. Away from the comptroller, the man who could have taken him back home! Kolton tried to return, but it was useless. How...how could he have even convinced the comptroller of anything in this...this form!
How could he let the comptroller know that Yorvet was telling him nothing but a bag of lies? He couldn't! Trapped by a rope and a man much too strong to be a normal human.
The filthy man, left him tied out in the dirt, no food, no water nearby, not that he'd want to eat what horses ate. He jerked at the rope once more. It would have been easier to escape if he had fingers!!

Stultify - 1: to cause to appear or be stupid, foolish, or absurdly illogical 2a: to impair, invalidate, or make ineffective : negate b: to have a dulling or inhibiting effect on

Added Info - Stupid or absurd behavior can almost be laughable at times. That's the kind of situation depicted in an 1871 London Daily News article, describing how a witness "stultified himself" by admitting that he was too far off to hear what he had claimed to have heard. But there is nothing especially funny about the now-archaic original usage of "stultify." The word was first used in the mid-1700s in legal contexts, where if you stultified yourself, you claimed to be of unsound mind and thus not responsible for your acts. Nor is there humor in the most common meaning of "stultify" nowadays, that rendering someone or something useless or ineffective.