The Collaborative International Dictionary of English v.0.48:

Lenocinant \Le*noc"i*nant\ (l[-e]*n[o^]s"[i^]*nant), a. [L.
   lenocinans, p. pr. of lenocinari to pander, cajole; akin to
   leno pimp.]
   Given to lewdness. [Obs.]
   [1913 Webster]