The headword, evidently quoted from somewhere, is a rare two-termination adjective in the genitive singular; see generally LSJ s.v. ou)ranoba/mwn. It occurs as an epithet of abstract nouns such as astronomy and theology, and of divinely-inspired persons. The Doric form suggests a source in lyric poetry or tragic lyrics, but no such source is attested.
[1] From the dream-interpretations, in verse, attributed to Astrampsychus (alpha 4251); again at pi 1921.