Source : Webster's Revised Unabridged Dictionary (1913)

Wartwort \Wart"wort`\, n. (Bot.)
   A name given to several plants because they were thought to
   be a cure for warts, as a kind of spurge ({Euphorbia
   Helioscopia}), and the nipplewort ({Lampsana communis}).

Nipplewort \Nip"ple*wort`\, n. (Bot.)
   A yellow-flowered composite herb ({Lampsana communis}),
   formerly used as an external application to the nipples of
   women; -- called also {dock-cress}.