Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Pănĭōnĭus, a, um, adj., = Πανιώνιος, of or belonging to all Ionia, sacred to all Ionia, Panionian: regio omnibus Ionibus sacra et ideo Panionia appellata, Plin. 5, 29, 31, § 113: Apollo, Vitr. 4, 1.

        1. (β) Subst.: Pănĭōnĭum, ii. n., i. q. regio Panionia: ibi est Panionium, sacra regio, et ob id eo nomine appellata, quod eam communiter Iones colunt, Mel. 1, 17, 2.