unharness
/ʌnˈhɑrns/Definitions
1. verb
to remove the harness from (an animal) or to release (a power source) from its constraints
“The team had to unharness the horses before they could be fed.”
2. noun
the act of removing the harness from (an animal) or releasing (a power source) from its constraints
“The unharnessing of the team was a crucial step in their training process.”