See quots. (Also called fever-root and fever-wort.)
1760. J. Lee, Introd. Bot. (1788), 333/2. Doctor Tinkers Weed, Triosteum.
1882. Ogilvie, Tinkars-root. (From Dr. Tinkar, who first brought the root into notice.) A North American shrub (Triosteum perfoliatum), N.O. Caprifoliacæ, whose root is an emetic and mild cathartic.