novation
n.
"replacement of an old obligation by a new one," 1530s, from Latin novationem (nominative novatio) "a making new, renewal," noun of action from past participle stem of novare "make new," from novus "new" (see new).
〔李〕[nov;-ationn.] n.（债券、条约等的）更新 ←nov (L novus)=new 新
〔蒋〕[nov新，-ation表示行为] 更新