Crossword Genius

Ancient Greek area north of Thessaly (6)

Ross

I believe the answer is:

thrace

(Other definitions for thrace that I've seen before include "Ancient area around Bulgaria" , "The car (anag.); historical region" , "Region of SE Balkans" , "ancient land" , "Historic region of SE Europe" .)

I've seen this clue in The New York Times.
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