Also kuosso, cusso, kosso, koso. [Abyssinian.] The dried flowers of an Abyssinian plant, Hagenia (Brayera) abyssinica (N.O. Rosaceæ), used as an anthelmintic.
1851. Illustr. Catal. Gt. Exhib., 197. Kuosso, from Abyssinia (Brayera anthelmīntica). The blossom of a tree the native remedy for the removal of tapeworm.
1876. Harley, Mat. Med. (ed. 6), 620. Kousso is an irritant.
1889. Watt, Dict. Econ. Prod. India, I. 534. Cusso or Kousso a bazaar commercial article in Bombay; it comes direct from Africa.