The Collaborative International Dictionary
Dissunder
Dissunder \Dis*sun"der\, v. t. [imp. & p. p. Dissundered; p.
pr. & vb. n. Dissundering.] [Pref. dis- (intens) + sunder.]
To separate; to sunder; to destroy. [R.]
--Chapman.
Wiktionary
dissunder
vb. (context transitive English) To separate; to sunder; to destroy.