Is it farther or further?
1660s, Modern Latin translation of German fingerhut, the German name of "foxglove," literally "thimble." Named by Fuchs (1542), and so called for its shape. The medicine (originally extracted from the plant) is so called from 1799.
digitalis dig·i·tal·is (dĭj'ĭ-tāl'ĭs)
A plant of the genus Digitalis, which includes the foxgloves, several species of which are a source of cardioactive steroid glycosides used in the treatment of certain heart diseases.
A pharmaceutical prepared from the seeds and dried leaves of the purple foxglove, Digitalis purpurea, and prescribed as a cardiac stimulant in the treatment of congestive heart failure and other disorders of the heart.