*calumba*

n. [ from kalumb, its native name in Mozambique. ] (Med.) The root of a plant (Jateorrhiza Calumba, and probably Cocculus palmatus), indigenous in Mozambique. It has an unpleasantly bitter taste, and is used as a tonic and antiseptic. [ Written also colombo, columbo, and calombo. ] [ 1913 Webster ]

American calumba, the Frasera Carolinensis, also called American gentian. Its root has been used in medicine as bitter tonic in place of calumba. [ 1913 Webster ]