sequester

se·ques·ter   (sĭ-kwěs'tər)    v.   se·ques·tered, se·ques·ter·ing, se·ques·ters v.   tr. To cause to withdraw into seclusion. To remove or set apart; segregate. See Synonyms at isolate. Law To take temporary possession of (property) as security against legal claims. To requisition and confiscate (enemy property). v.   intr. Chemistry To undergo sequestration. [Middle English sequestren, from Old French, from Latin sequestrāre, to give up for safekeeping, from Latin sequester, depositary, trustee; see sekw-1 in Indo-European roots.]

sequester 

Main Entry: se·ques·ter
Pronunciation: si-'kwes-t&r
Function: transitive verb
Inflected Forms: -tered; -ter·ing
Etymology: Anglo-French sequestrer, from Middle French, from Latin sequestrare to hand over to a trustee, from sequester third party to whom disputed property is entrusted, agent, from secus beside, otherwise
1 : to place (as a jury or witness) in seclusion or isolation
NOTE: Juries are sequestered in order to preserve their impartiality. Witnesses are sequestered so that their testimony is not influenced by the testimony of prior witnesses.
2 a : to seize esp. by a writ of sequestration b : to deposit (property) in sequestration

Main Entry: ¹se·ques·ter
Pronunciation: si-'kwes-t&r
Function: transitive verb
: to hold (as a metallic ion) in solutionespecially for the purpose of suppressing undesired chemical or biological activity