unpinion
/(ˌ)ʌnˈpɪnjən/verb
[with object] To unbind or release (the arms or legs of a restrained person); to unshackle or free (a person) in this way. Also (and in earliest use) figurative : to free from (especially mental) limitations or restrictions.
Origin
Late 16th century (in an earlier sense). In sense 1 from un- + pinion.