The Collaborative International Dictionary of English v.0.48:

Sleazy \Slea"zy\ (sl[=e]"z[y^]), a. [Cf. G. schleissig worn out,
   threadbare, from schleissen to slit, split, decay, or E.
   leasy.]
   Lacking firmness of texture or substance; thin; flimsy; as,
   sleazy silk or muslin. [Spelt also slazy.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slazy \Sla"zy\ (sl[=a]"z[y^]), a.
   See Sleazy.
   [1913 Webster]