unmortise

un·mor·tise

U0097500 (ŭn-môr′tĭs)tr.v. un·mor·tised, un·mor·tis·ing, un·mor·tis·es 1. To loosen a mortised joint of.2. To separate.

unmortise

(ʌnˈmɔːtɪs) vb (tr) to separate (a mortise and tenon)