Meaning

verb requisition forcibly, as of enemy property

verb take temporary possession of as a security, by legal authority

verb undergo sequestration by forming a stable compound with an ion

originFrom Middle English sequestren (verb) and sequestre (noun), from Old French sequestrer, from Late Latin sequestrō (“separate, give up for safekeeping”), from Latin sequester (“mediator, depositary”), probably originally meaning "follower", from Proto-Indo-European *sekʷ- (“follow”).

Etymology from Wiktionary, CC BY-SA 3.0