intercede (verb) – to act as a mediator; to plead on another’s behalf
BREAKDOWN: INTER- (between) + CED- (go)
— intercession is mediation in a dispute; argument in favor of another
This word is built on the root CED-, which means to go, to yield, or to withdraw.
Common CED- words include concede, exceed, procedure, recede, and succeed.
More esoteric CED- words include decedent and procedural.