ayahuasco

\\ˌīəˈwä(ˌ)skō, -_skə\ noun (-s)

Etymology: American Spanish ayahuasca, from Quechua ayawáskha

: a So. American vine (Banisteria caapi) of the family Malpighiaceae having roots that yield a drink which produces a delirious psychosis that alternates with prolonged hallucinations and dreams