The Collaborative International Dictionary of English v.0.48:

Opiparous \O*pip"a*rous\, a. [L. opiparus, fr. ops, opis, riches
   + parare to provide.]
   Sumptuous. [Obs.] -- O*pip"a*rous*ly, adv. [Obs.] --E.
   Waterhouse.
   [1913 Webster]