Disparage
/dɪˈspær.ɪdʒ/ verb mediumTo speak of someone or something in a dismissive, belittling way.
He constantly disparaged his coworkers' ideas in meetings, yet rarely offered any of his own.
Memory Trick
The word contains 'par,' meaning equal, as in 'on par' — to disparage someone is to treat them as somehow less than equal.