The Collaborative International Dictionary of English v.0.48:

Ossianic \Os`si*an"ic\, prop. a.
   Of or pertaining to, or characteristic of, Ossian, a
   legendary Erse or Celtic bard.
   [1913 Webster]

         The compositions might be fairly classed as Ossianic.
                                                  --G. Eliot.
   [1913 Webster]