IPA: /ʌnˈkɒk/
KK: /ʌnˈkɑk/
To release or lower the cock of a firearm, or to straighten something that is cocked or bent.
He had to uncock the gun before putting it away safely.
Past: uncocked
Past Participle: uncocked
The word 'uncock' is formed from the prefix 'un-' (meaning not or opposite of) and 'cock' (from Old English 'coc', meaning a male bird, particularly a rooster). The term 'uncock' means to remove the cocking mechanism or to release something that has been cocked, often used in the context of firearms.
Think of 'un-' meaning not or opposite, and 'cock' referring to the mechanism that is set. So, 'uncock' means to reverse the action of setting that mechanism.