Lewis & Short

ex-stinctor (ext-), ōris, m. [exstinguo], an extinguisher (rare but class.).

  1. I. Lit.: non exstinctor sed auctor incendii, Cic. Pis. 11, 26.
    1. B. Transf., an annihilator, destroyer: ne exstinctor patriae, ne proditor, ne hostis appelletur, Cic. Sull. 31, 88: regiae domus (Cassander), Just. 16, 1.
  2. II. Trop.: conjurationis, suppressor (opp. auctor et dux), Auct. Or. pro Domo, 38, 101: belli, Auct. Or. de Harusp. Resp. 23, 94.