The Collaborative International Dictionary of English v.0.48:

Levin \Lev"in\ (l[e^]v"[i^]n), n. [Etymol. uncertain. Cf.
   Leven.]
   Lightning. [Obs.] --Spenser.
   [1913 Webster]

   Levin brand, a thunderbolt. [Obs.] --Spenser.
      [1913 Webster]