Thracian vs Thrace

Thracian and Thrace both are nouns.

Word	Noun	Adjective	Verb	Adverb
Thracian	Yes	Yes	No	No
Thrace	Yes	No	No	No

Thracian (noun)	Thrace (noun)
a Thraco-Phrygian language spoken by the ancient people of Thrace but extinct by the early Middle Ages	an ancient country and wine producing region in the east of the Balkan Peninsula to the north of the Aegean Sea; colonized by ancient Greeks; later a Roman province; now divided between Bulgaria and Greece and Turkey
an inhabitant of ancient Thrace

Thracian (adjective)	Thrace (adjective)
of or relating to Thrace or its people or culture