The Collaborative International Dictionary of English v.0.48:

Rou'e \Rou`['e]"\, n. [F., properly p. p. of rouer to break upon
   the wheel, fr. roue a wheel, L. rota. See Rotate,
   Rotary.]
   One devoted to a life of sensual pleasure; a debauchee; a
   rake.
   [1913 Webster]

WordNet (r) 3.0 (2006):

roue
    n 1: a dissolute man in fashionable society [syn: rake,
         rakehell, profligate, rip, blood, roue]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "roue":
   Casanova, Don Juan, Lothario, debauchee, gallant, gay deceiver,
   gay dog, lady-killer, libertine, lover-boy, philanderer,
   profligate, rake, rakehell, rip, rounder, skirt chaser, swinger,
   walking phallus, wanton, wolf, woman chaser, womanizer