untie

To loosen, as something interlaced or knotted; to disengage the parts of.

to untie a knot

Haſt thou the pretty vvorme of Nylus [an asp] there, / That killes and paines not? / […] / Come thou mortal vvretch, / VVith thy ſharpe teeth this knot intrinſicate, / Of life at once vntye: Poore venomous Foole, / Be angry, and diſpatch.

To free from fastening or from restraint; to let loose; to unbind.

Though you untie the winds, and let them fight / Against the churches.

All the evils of an untied tongue we put upon the accounts of drunkenness.

To resolve; to unfold; to clear.

They quicken sloth, perplexities untie.

To become untied or loosed.

In the Perl programming language, to undo the process of tying, so that a variable uses default instead of custom functionality.

After you finish with the INI file, all you need to do is untie the hash. Then you really are finished!