Verb (used with object) : The volcano vomited flames and molten rock.    From Dictionary.com. 

When Termite discovers the words vomica, vomit, vomitive, vomitory, vomitorium, vomiturition, and vomitus in the dictionary, she comments that, Page 1,355 has got to be the best page of the dictionary ever.    From Wordnik.com.  [Archive 2006-08-01] Reference

But the Sulphur of Antimony which is vehemently vomitive, and the strongly scented Anodyne Sulphur of Vitriol inclines me to think that not only Mineral Sulphurs differ from Vegetable ones, but also from one another, retaining much of the nature of their Concretes.    From Wordnik.com.  [The Sceptical Chymist or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject.] Reference