IPA: /dɪˈrɒɡəˌtɔːrɪli/
KK: /dɪˈrɑɡəˌtɔri/
In a way that shows a lack of respect or belittles someone or something.
He spoke derogatorily about her ideas during the meeting.
Derogatorily → It is formed from "derogatorius" (from Latin, meaning tending to detract or belittle) and the adverbial suffix "-ly" (meaning in a manner of). The word "derogatorily" means in a manner that belittles or detracts from something.
Think of the Latin root 'derogatorius' which means to belittle, and remember that 'derogatorily' describes doing something in a belittling way.