The “arrow-poison tree” of Java, the terrible upas tree of legend.
Salamanders and Other Wonders by Willy Ley, 1955.
The poisonous sap of a Javanese tree, used on poison arrows.
Misunderstood, Misused, & Mispronounced Words by Laurance Urdang, 1972.
A Malay word, meaning the ”Land of the Nutmegs.”
5000 Facts and Fancies by William Henry P. Phyfe, 1901.