ruff

In card games, to play a trump card when unable to follow suit.

"You must ruff if you have no cards of that suit."

A prominent growth of feathers or fur around a bird's or animal's neck.

"The male lion displayed a magnificent ruff."

An act of playing a trump card when unable to follow suit.

"That clever ruff secured the trick for them."

A large, stiff, pleated collar worn in 16th and 17th century Europe.

"Queen Elizabeth I often wore an elaborate ruff."