madwort

noun

mad·​wort ˈmad-ˌwərt 

-ˌwȯrt

1

: alyssum sense 1

2

: a low hairy annual European herb (Asperugo procumbens) of the borage family with blue flowers and a root used as a substitute for madder

Word History

First Known Use

1597, in the meaning defined at sense 1