كرفسكَرَفْسٌ, (S, Msb, K,) so written in the Bári' and the T, but in some copies of the S, كَرْفَسٌ, [which is wrong,] (Msb,) [The herb smallage; apium graveolens of Linnæus,] a well known herb, or leguminous plant, (S, Msb, K,) of the hottest of leguminous plants (منْ أَحَرِّ البُقُولِ, TA, [but this is probably a mistake for مِنْ أَحْرَارِ البُقُولِ of the leguminous plants that are eaten without being cooked, or that are slender and succulent or soft or sweet,]) the utilities of which are great; diuretic; a disperser of winds and flatulence; a cleanser of the kidneys and liver and bladder, opening obstructions thereof; a strengthener of the venereal faculty, especially its seeds pounded with sugar and clarified butter, wonderful when drunk three days, (K,) upon an empty stomach, with avoidance of hurtful things, (TA,) but injurious to the young in the womb, and to the pregnant, and to those affected with epilepsy: (K:) said by Lth to be a foreign word introduced into the Arabic language, (TA.) and thought to be so by Az: (Msb:) in the O said to be arabicized; and, in the language of the people of Ghazneh, called كرفح [or كرفج?] (TA.) كُرْفُسٌ Cotton: (K:) [like كُرْسُفٌ, from which it appears to be formed by transposition: see also كِرْبَاسٌ.]