/mudh"euhr werrt', -wawrt'/ , n.
a European plant, Leonorus cardiaca, of the mint family, an introduced weed in the U.S., having cut leaves with a whorl of lavender flowers in the axils.
[ 1350-1400; ME moderwort (see MOTHER 1 , WORT 2 ), so called because believed helpful for diseases of the womb ]