The Collaborative International Dictionary
Felonwort
Felonwort \Fel"on*wort`\, n. (Bot.) The bittersweet nightshade ( Solanum Dulcamara). See Bittersweet.
Wiktionary
felonwort
n. 1 The (vern: bittersweet nightshade), ''Solanum dulcamara''. 2 Other plants traditionally used to treat the type of bacterial infection known as a felon, such as celandine