arbitrarious

from The Collaborative International Dictionary of English v.0.48

Arbitrarious \Ar`bi*tra"ri*ous\, a. [L. arbitrarius. See
   {Arbitrary}.]
   Arbitrary; despotic. [Obs.] -- {Ar`bi*tra"ri*ous*ly}, adv.
   [Obs.]
   [1913 Webster]