Pennyroyal
Pronunciation : Pen`ny*roy"al
Part of Speech : n.
Etymology : [A corruption of OE. puliall royal. OE. puliall is ultimately derived fr. L. puleium, or pulegium regium (so called as being good against fleas), fr. pulex a flea; and royal is a translation of L. regium, in puleium regium.] (Bot.)
Definition : Defn: An aromatic herb (Mentha Pulegium) of Europe; also, a North American plant (Hedeoma pulegioides) resembling it in flavor. Bastard pennyroyal (Bot.) See Blue curls, under Blue.
Source : Webster's Unabridged Dictionary, 1913