a plant belonging to the genus Anagallis, of the primrose family, esp. A. arvensis(scarlet pimpernel), having scarlet or white flowers that close at the approach of bad weather.
Origin: 1400–50; late ME pympernele < MF pimprenelle, nasalized var. of OF piprenelle < LL *piperīnella, equiv. to piperpepper+ -īn--ine1+ -ella dim. suffix; r. OE pipeneale < LL pipīnella, syncopated var. of *piperīnella
pim·per·nel (pĭm'pər-něl', -nəl) n. Any of various plants of the genus Anagallis, especially the scarlet pimpernel (A. arvensis) having opposite, entire leaves and small red, purple, or white flowers.
[Middle English pimpernelle, from Old French, alteration of piprenelle, from Late Latin pimpinella, perhaps from Latin piper, pepper; see pepper.]
c.1400, from O.Fr. pimprenelle, earlier piprenelle (12c.), from M.L. pipinella "a medicinal plant," perhaps from *piperinus "pepper-like" (so called because its fruits resemble peppercorns), a derivative of L. piper "pepper" (see pepper). "The Scarlet Pimpernel" was the code name of the hero in an adventure novel of that name published 1905.
(genus Anagallis), any of several plants of the primrose family (Primulaceae), consisting of about 30 species of low herbs mostly native to western Europe.
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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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