preservation

transitive verb | \ pri-ˈzərv \ | pre·serve

1. : to keep safe from injury, harm, or destruction expenses necessary to preserve the property

2. 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.