defeasance

詳細解釋：

de.fea.sance

n.（名詞）
A rendering void; an annulment.
作廢：處於作廢的狀況；廢止，取消

The voiding of a contract or deed.
廢除：指契約或契約的作廢
A clause within a contract or deed providing for annulment.
廢約條款：契約或契約里規定作廢的條款

來源：
Middle English defesaunce
中古英文 defesaunce
from Anglo-Norman
源自 英法文
from Old French defesance
源自 古法文 defesance
from defesant [present participle of] desfaire [to destroy] * see defeat
源自 defesant [] desfaire的現在分詞 [毀壞] *參見 defeat