Agitation of the surface of a fluid by fermentation or some other cause; a rippling on the surface of water.

Agitation of the mind marked by complaint and impatience; disturbance of temper; irritation.

“He keeps his mind in a continual fret.”

Herpes; tetter.

Especially when describing animals: to consume, devour, or eat.

To chafe or irritate; to worry.

To make rough, to agitate or disturb; to cause to ripple.

“to fret the surface of water”