The Collaborative International Dictionary of English v.0.48:

Roynish \Royn"ish\, a. [F. rogneux, from rogne scab, mange,
   itch.]
   Mangy; scabby; hence, mean; paltry; troublesome. [Written
   also roinish.] [Obs.] "The roynish clown." --Shak.
   [1913 Webster] Royster