Webster's Revised Unabridged Dictionary · 1913

Feverfew

Feverfew (fē"vẽr*fū) , noun

[Anglo-Saxon feferfuge, from Latin febrifugia. See fever, Fugitive, and compare Febrifuge.]

(Botany) A perennial plant (Pyrethrum Parthenium, or Chrysanthemum Parthenium) allied to camomile, having finely divided leaves and white blossoms; -- so named from its supposed febrifugal qualities.