%arcadic%

{ } a. [ L. Arcadius, Arcadicus, fr. Arcadia: cf. F. Arcadien, Arcadique. ] 1. Of or pertaining to Arcadia; pastoral; ideally rural; as, Arcadian simplicity or scenery. [ 1913 Webster ]

2. the dialect of Ancient Greek spoken by Arcadians. [ WordNet 1.5 ]