Definition of Leonine

  The electric light invades the dunnest deep of Hades.
  Cries Pluto, 'twixt his snores:  'O tempora! O mores!'
 
  It should be explained that Mrs. Silcox does not undertake to teach pronunciation of the Greek and Latin tongues.  Leonine verses are so called in honor of a poet named Leo, whom prosodists appear to find a pleasure in believing to have been the first to discover that a rhyming couplet could be run into a single line.