A cluster of feverfew flowers.
feverfew definition by Webster's New World
Origin of feverfewMiddle English fevyrfue ; from Old English feverfuge and amp; Anglo-French an unverified form fewerfue, both ; from Late Latin febrifugia ; from Classical Latin febris, fever + fugia ; from fugare, to drive away; akin to fugere, to flee: see fugitive
feverfew definition by American Heritage Dictionary
Origin of feverfewMiddle English feverfu, from Old English feferfuge and from Anglo-Norman *fevrefue, both from Late Latin febrifugia : febris, fever + fuga, flight.
feverfew definition by Wiktionary
Through Old French fevrefue, from Latin febrifugia, from febris (“fever”) + fugō (“I drive away”). If directly from Latin, the latter part of the word was changed to "few" due to unfamiliarity with the element -fuge.