Meaning

noun the dialect of Ancient Greek spoken and written in Attica and Athens and Ionia

adjective containing or involving or occurring in the form of ions

adjective of or pertaining to the Ionic order of classical Greek architecture

originEtymology tree Proto-Indo-European *h₁ey- Proto-Indo-European *h₁éyti Proto-Hellenic *éimi Ancient Greek εἶμι (eîmi)der. English ion Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English ionic From ion + -ic.

Etymology from Wiktionary, CC BY-SA 3.0