any of various often hairy plants of the genus Lithospermum, of the borage family, usually bearing white or yellowish flowers and smooth, white, stony nutlets.
Origin
1275-1325;Middle Englishgromil < Old French, equivalent to gro- (< ?) + mil millet < Latinmilium
British Dictionary definitions for gromwell
gromwell
/ˈɡrɒmwəl/
noun
1.
any of various hairy plants of the boraginaceous genus Lithospermum, esp L. officinale, having small greenish-white, yellow, or blue flowers, and smooth nutlike fruits See also puccoon (sense 1)
Word Origin
C13: from Old French gromil, from gres sandstone + mil millet, from Latin milium