The story
From its taxonomic name Elcaja roka by Peter Forsskål, modelled after its Arabic names جَوْز القَيْء (jawz al-qayʔ) and رُقَع (ruqaʕ).
Etymology from Wiktionary, CC BY-SA 4.0.
elcaja
Today it means: Trichilia emetica, an Arabian tree whose fruit is an emetic. Full definition →