sequester

requisition forcibly, as of enemy property; "the estate was sequestered"

take temporary possession of as a security, by legal authority; "The FBI seized the drugs"; "The customs agents impounded the illegal shipment"; "The police confiscated the stolen artwork"

undergo sequestration by forming a stable compound with an ion; "The cations were sequestered"

keep away from others; "He sequestered himself in his study to write a book"

set apart from others; "The dentist sequesters the tooth he is working on"