to set free from or as if from a cage; free from confinement or restraint
Word origin
[1610–20; un-2 + cage]This word is first recorded in the period 1610–20. Other words that entered Englishat around the same time include: institutional, intonation, squelch, tank, technicalun- is a prefix freely used in English to form verbs expressing a reversal of some actionor state, or removal, deprivation, release, etc. (unbend; uncork; unfasten; etc.), or to intensify the force of a verb already having such a meaning (unloose)