precession (noun) – precedence; the act or state of going before
BREAKDOWN: PRE- (before) + CES- (go) + -ION (act of)
— a predecessor is one who precedes another and is subsequently replaced or succeeded
EASILY CONFUSED WITH: procession (noun) – the act of going forward or proceeding; a group moving forward in an orderly fashion
This word is built on the root CES-, which means to go, to yield, or to withdraw.
Common CES- words include access, ancestor, excess, necessary, necessity, process, recess, and success.
More esoteric CES- words include cession and cesspool.