spurge UK /spɜːdʒ/US /spɜɹdʒ/noun 3verb 1forms 3 noun3 •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. — 1855 •Any plant of the spurge family, Euphorbiaceae. •A plant resembling those in genus Euphorbia in some aspect of its appearance. verb1 •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. — 1661 formsspurged · spurging · spurges