† rumˈbustionObs.—1 In 7 rombostion. [Cf. rumbullion1.] Rum. 1652Mercurius PoliticusNo. 90. 1435 Partly [through] the Brandewin wherewith we have furnisht him, the spirits of Rombostion, which our men there make him, and other good hopes we give him, he becomes very valiant.