pinion (verb) – to hold someone, especially by their arms, to prevent them from moving
(Pronounced pin-yuhn)
To remember the definition of the word pinion (verb), use the following mnemonic:
He pinned the onion (pinion) up against the wall, holding its arms to prevent it from moving.

Examples of pinion (verb) in a sentence
When administering veterinary treatment to a bird, it's a good idea to pinion their wings.
The officer warned the suspect not to run, or she'd pinion him.
In the struggle to pinion him, his arm was broken.