cascara

 
Pronunciation: /kasˈkɑːrə/
(also cascara sagrada /səˈgrɑːdə/)

noun

  • 1 [mass noun] a purgative made from the dried bark of an American buckthorn.
  • 2the tree from which cascara is obtained, native to western North America.
    • Rhamnus purshiana, family Rhamnaceae

Origin:

late 19th century: from Spanish cáscara (sagrada), literally '(sacred) bark'