spurge

noun

1. (uncountable, usually)Any plant of the genus Euphorbia, a diverse genus of over 2,000 species.

   “But cockle, spurge, according to their law / Might propagate their kind, with none to awe, / You'd think; a burr had been a treasure trove.”

   “A compound of spurge, cardamom, cinnamon of Mecca, pellitory, ginger, nettle seed is an Arab specific for sexual weakness.”

2. (uncountable, usually)Any plant of the spurge family, Euphorbiaceae.
3. (uncountable, usually)A plant resembling those in genus Euphorbia in some aspect of its appearance.

verb

1. (intransitive)To emit foam; to froth; said of the emission of yeast from beer during fermentation.

   “The body's somthing noysome: 'tis a stale one; / Good troth it spurgeth very monstrously.”