from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Hesperis matronalis, a herbaceous mustard.
from the GNU version of the Collaborative International Dictionary of English
- n. A cruciferrous plant (Hesperis matronalis), remarkable for its fragrance, especially toward the close of the day; -- called also rocket and dame's violet.
dame + wort (Wiktionary)