IPA: /ʌnˈmjuː/
KK: /ʌnˈmju/
To free someone or something from a place where they are kept or held.
The kind man decided to unmew the trapped bird from its cage.
Past: unmewed
Past Participle: unmewed
The word 'unmew' originates from the Old French 'muer' (meaning to change or to molt) with the prefix 'un-' (meaning not). The term originally referred to the act of a hawk being unconfined or released from its mew, which is a place where it is kept during molting.
Think of a hawk being 'not' confined ('un-') in its place of change ('mew') — that's why 'unmew' means to release or let go.