1
Stage 1 of 4
kina
Quechua · pre-1500s
"bark, specifically fever-tree bark"
named the bark of the cinchona tree used to treat fevers
2
Stage 2 of 4
quina
Spanish · 1630s
"cinchona bark used as medicine"
adopted by Spanish Jesuits who learned of the fever-bark remedy in Peru
3
Stage 3 of 4
quinine
French · 1820
"the isolated anti-malarial alkaloid from cinchona bark"
coined by French chemists Pelletier and Caventou when they isolated the active alkaloid
4
Stage 4 of 4
quinine
English · 1820s
"a bitter compound used to treat malaria"
borrowed directly from the French scientific term
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