defease

vt. 使作废，废除(合同、契约等)：

词形变化

defeased defeases 三单 defeases defeasing defeasing 现在分词 defeased 过去式 defeased 过去分词

释义与例句

v.
  1. 1.

    To annul or render void a contract or stipulation; to abrogate.

词源

Back-formation from defeasance.

来源：wiktionary