Un‐fix″ (?), v. t. [1st pref. un- + fix.] 1. To loosen from a fastening; to detach from anything that holds; to unsettle; as, to unfix a bayonet; to unfix the mind or affections.
2. To make fluid; to dissolve.
The mountain stands; nor can the rising sun
Unfix her frosts. Dryden.