sequester (verb) – to set apart or put in safekeeping; to withdraw
BREAKDOWN: SEQU- (follow) + -ER (to do)
— to sequester a jury is to isolate the jurors from the public for some or all of a trial to prevent contact with outside influences
— sequestration is the act of sequestering or confiscating; also the process of segregation
This word is built on the root SEQU-, which means to follow.
Common SEQU- words include sequel and sequence.
More esoteric SEQU- words include sequacious.