cush-cush

 
Pronunciation: /ˈkʊʃkʊʃ/
(also cush-cush yam)

noun

  • a tropical American yam which produces a number of tubers on each plant.
    • Dioscorea trifida, family Dioscoreaceae
  • [mass noun] the edible tuber of the cush-cush, eaten as a vegetable.

Origin:

late 19th century: perhaps ultimately of African origin