legendary poisonous tree of Java, 1783, via Dutch, from Malay (Austronesian) upas "poison," in pohun upas "poison tree." As the name of an actual tree (Antiaris toxicaria) yielding poisonous sap, from 1814.
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up-
up-and-down
Upanishad
upas
upbeat
upbraid
upbringing
upchuck
upcoming
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