Source : Webster's Revised Unabridged Dictionary (1913)

Losel \Los"el\, n. [From the root of lose, loss. ?. Cf.
   {Lorel}.]
   One who loses by sloth or neglect; a worthless person; a
   lorel. [Archaic] --Spenser.

         One sad losel soils a name for aye.      --Byron.

Losel \Los"el\, a.
   Wasteful; slothful.