The Collaborative International Dictionary
Witch \Witch\, n. [OE. wicche, AS. wicce, fem., wicca, masc.; perhaps the same word as AS. w[=i]tiga, w[=i]tga, a soothsayer (cf. Wiseacre); cf. Fries. wikke, a witch, LG. wikken to predict, Icel. vitki a wizard, vitka to bewitch.]
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One who practices the black art, or magic; one regarded as possessing supernatural or magical power by compact with an evil spirit, esp. with the Devil; a sorcerer or sorceress; -- now applied chiefly or only to women, but formerly used of men as well.
There was a man in that city whose name was Simon, a witch.
--Wyclif (Acts viii. 9).He can not abide the old woman of Brentford; he swears she's a witch.
--Shak. An ugly old woman; a hag.
--Shak.One who exercises more than common power of attraction; a charming or bewitching person; also, one given to mischief; -- said especially of a woman or child.
(Geom.) A certain curve of the third order, described by Maria Agnesi under the name versiera.
(Zo["o]l.) The stormy petrel.
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A Wiccan; an adherent or practitioner of Wicca, a religion which in different forms may be paganistic and nature-oriented, or ditheistic. The term witch applies to both male and female adherents in this sense.
Witch balls, a name applied to the interwoven rolling masses of the stems of herbs, which are driven by the winds over the steppes of Tartary. Cf. Tumbleweed.
--Maunder (Treas. of Bot.)Witches' besoms (Bot.), tufted and distorted branches of the silver fir, caused by the attack of some fungus.
--Maunder (Treas. of Bot.)Witches' butter (Bot.), a name of several gelatinous cryptogamous plants, as Nostoc commune, and Exidia glandulosa. See Nostoc.
Witch grass (Bot.), a kind of grass ( Panicum capillare) with minute spikelets on long, slender pedicels forming a light, open panicle.
Witch meal (Bot.), vegetable sulphur. See under Vegetable.
Wikipedia
Panicum capillare, known by the common name witchgrass, is a species of grass. It is native plant to most of North America from the East Coast through all of the West Coast and California. It can be found as an introduced species in Eurasia, and as a weed in gardens and landscaped areas. It grows in many types of habitat.