un- + fix
unfix (third-person singular simple present unfixes, present participle unfixing, simple past and past participle unfixed)
- To unfasten from a fixing
- 1603-06: "Whose horrid image doth unfix my hair and make my seated heart knock at my ribs against the use of nature?" — Macbeth: Ac.1 Sc3, Wm. Shakespeare.