IPA: /dɪˈɡreɪdə/
KK: /dɪˈɡreɪdər/
A person who reduces the quality, value, or character of something, often by making it worse or less valuable.
The degrader of the artwork used cheap materials that ruined its value.
Degrader → It is formed from "de-" (meaning down or away) and "gradi" (from Latin, meaning to step or go). The word "degrader" refers to someone or something that causes a decline or deterioration, stepping down the quality or status of something.
Think of 'stepping down' ('gradi') from a higher state to a lower one ('de-') — that's why a degrader means something that causes decline.