fleawort
nounEtymology From flea + wort.
1
Any of various not closely related plants that are supposed to kill or ward off fleas.
2
lady's bedstraw (Galium verum).
3
A herb, Plantago psyllium, whose seeds are supposed to resemble fleas.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.