tapioca (n.)youdaoicibaDictYouDict[tapioca 词源字典]
1640s, tipiaca, from Portuguese or Spanish tapioca, from Tupi (Brazil) tipioca "juice of a pressed cassava," from tipi "residue, dregs" + og, ok "to squeeze out" (from roots of the cassava plant).[tapioca etymology, tapioca origin, 英语词源]