IPA: /ɪkˈskɔːr.i.eɪt/
KK: /ɛkˈskɔːrɪˌeɪt/
To criticize someone or something very harshly, or to remove the skin from a surface.
The journalist excoriated the politician for his unethical behavior.
Past: excoriate
Past Participle: excoriated
Excoriate is formed from "ex-" (meaning out of or away from) and "corium" (meaning skin). The word describes the act of stripping away or removing the skin, often used in a figurative sense to mean criticizing severely.
Think of 'removing' ('ex-') the 'skin' ('corium') to remember that excoriate means to strip away or criticize harshly.