Definition of disannulment in English:
disannulment
Pronunciation /ˌdɪsəˈnʌlm(ə)nt/
noun
The action or an act of annulling or abolishing something; annulment.
Origin
Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From disannul + -ment, after annulment.