DISANNUL
Etymology
Verb
disannul (third-person singular simple present disannuls, present participle disannulling, simple past and past participle disannulled)
To annul, do away with; to cancel.
it is possible […] out of mature judgment to avoid the effect, or disannul the cause, as they do that are troubled with toothache, pull them quite out.
Source: Wiktionary
Dis`an*nul", v. t.
Definition: To annul completely; to render void or of no effect.
For the Lord of hosts hath purposed, and who shall disannul Isaiah
xiv. 27.
Note: The prefix in this word an its derivatives is intensive, and
not negative.
Source: Webster’s Unabridged Dictionary 1913 Edition