UNLINK
Etymology
Verb
unlink (third-person singular simple present unlinks, present participle unlinking, simple past and past participle unlinked)
(transitive) To decouple; to remove a link from, or separate the links of.
(transitive, computing, Unix) To delete (a file).
Noun
unlink (plural unlinks)
(math, knot theory) A link that is equivalent (under ambient isotopy) to finitely many disjoint circles in the plane.
Source: Wiktionary
Un*link", v. t. Etym: [1st pref. un- + link.]
Definition: To separate or undo, as links; to uncoil; to unfasten. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition