Pinion
/ˈpɪnjən/
noun
A wing.
The joint of a bird's wing farthest from the body.
Any of the outermost primary feathers on a bird's wing.
verb
To cut off the pinion of a bird’s wing, or otherwise disable or bind its wings, in order to prevent it from flying.
To bind the arms of someone, so as to deprive him of their use; to disable by so binding.
(transferred sense) To restrain; to limit.
Synonyms: shackle