IPA: /ˌɪn.təˈsiː.dər/
KK: /ɪnˈtɜrˌsiːdər/
A person who acts on behalf of someone else, especially in a dispute or negotiation, often to help resolve a problem or to plead for someone.
The interceder spoke on behalf of the children to ensure their needs were met.
Intercede → It is formed from "inter-" (meaning between) and "cedere" (meaning to go or yield). The word describes the act of going between parties to mediate or plead on behalf of someone.
Think of someone 'going between' ('inter-') two parties to 'yield' or help resolve a situation — that's what intercede means.