出典:Wiktionary
Contraction of ipecacuanha, from Portuguese ipecacuanha, from Tupi-Guarani ipekaaguéne (“emetic creeper”), from ipe (“small”) + kaa (“leaves”) + guéne (“vomit”); or from Tupian ɨpekakwánʸa, from ɨpeka (“duck”) + akwánʸa (“penis”).
(This etymology is missing または incomplete. Please add to it, または discuss it at the 語源 scriptorium.)
ipecac (countable かつ uncountable, 複数形 ipecacs)