The Collaborative International Dictionary
Ossianic \Os`si*an"ic\, prop. a. Of or pertaining to, or characteristic of, Ossian, a legendary Erse or Celtic bard.
The compositions might be fairly classed as Ossianic.
--G. Eliot.
Douglas Harper's Etymology Dictionary
1808, in reference to Oisin, name of a legendary Gaelic bard, literally "little fawn;" James Macpherson claimed to have collected and translated his works (1760-1763) under the name Ossian, and the poetic prose sparked a Celtic revival and fascination with the glamor of the lost world of the bards. The work turned out to be Macpherson's forgery, and the style later was regarded as bombastic, but the resulting swerve in European literature was real.
Usage examples of "ossianic".
The great Sharr, looming unusually large and tall in the Scandinavian mountain-scene, grey of shadow and glancing with sun-gleams that rent the thick veils of mist-cloud, assumed a manner of Ossianic grandeur.