Where does “Arcadian” come from?

Arcadian comes from Latin Arcadia, from Ancient Greek Ἀρκαδία, ultimately from Proto-Indo-European roots meaning "to go" or "journey," referring to the ancient Greek region.

Arcadian (English): An inhabitant of ancient Arcadia; An ideal...

Definitions

An inhabitant of ancient Arcadia; An ideal...

Ancestry of “Arcadian”, step by step

Arcadian traces back through 3 separate lines of ancestry.

via English arcade

Step	Language	Word	Meaning
1	English	arcade	A row of arches; A covered passage, usually with...
2	French	arcade	arcade; arch, ridge
3	Italian	arcata	arcade, arch, span; arch
4	Latin	arcus	arc, arch; bow; rainbow
5	Latin	solium	seat, chair; throne, chair of state, official...
6	Proto-Indo-European	sodyom	—
7	Proto-Indo-European	sḗd-	to sit

via English Arcadia

Step	Language	Word	Meaning
1	English	Arcadia	An ideal region of rural and idyllic contentment;...
2	Latin	Arcadia	Arcadia
3	Ancient Greek	Ἀρκαδία	Arcadia
4	Ancient Greek	Ἀρκάς	an inhabitant of Arcadia; an Arcadian
5	Mycenaean Greek	𐀀𐀏	—

via Latin Arcadius

Step	Language	Word	Meaning
1	Latin	Arcadius	A Roman Emperor, Arcadius
2	Ancient Greek	Ἀρκάδιος	Arcadius, a name borne by an Emperor
3	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
4	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Words derived from “Arcadian”

Every word from Proto-Indo-European sḗd- →Every word from Proto-Indo-European sodyom →Every word from Latin solium →