We don't have synonyms for illyria yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are illyric.
(n) :
(historical) A vaguely-defined geographic region in Southeast Europe in the western part of the Balkan Peninsula, approximately coincident with modern Albania.
(n) :
(historical) A much larger former province of the Roman Empire, covering the whole of Dalmatia and Pannonia, existing from 27 BC to c. 70 AD and reconstituted in 293 AD by Diocletian.
(n) :
(historical) A vaguely-defined geographic region in Southeast Europe in the western part of the Balkan Peninsula, approximately coincident with modern Albania.
(n) :
(historical) A much larger former province of the Roman Empire, covering the whole of Dalmatia and Pannonia, existing from 27 BC to c. 70 AD and reconstituted in 293 AD by Diocletian.