preserve
transitive verb | \ pri-ˈzərv \ | pre·serve
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: to keep safe from injury, harm, or destruction expenses necessary to preserve the property
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a : to keep valid, intact, or in existence (as pending a proceeding) the right of a trial by jury shall be preserved —U.S. Constitution amend. VII the dismissal of a chapter 7 case…reinstates certain transfers voided or preserved in the case —J. H. Williamson
b : to maintain for use or consideration at a later time especially by keeping a record of deposed the witness to preserve her testimony a party has the option of preserving the objection raised —J. H. Friedenthal et al.