From defease + -ment. <span class="searchmatch">defeasement</span> (plural <span class="searchmatch">defeasements</span>) (rare, possibly nonstandard) Defeasance....
<span class="searchmatch">defeasements</span> plural of <span class="searchmatch">defeasement</span>...
participle defeasing, simple past and past participle defeased) To annul or render void a contract or stipulation; to abrogate. defeasance <span class="searchmatch">defeasement</span>...