This is the 7234th most frequent Turkish word.
ertaş
A close companion or peer.
In this sentence, 'ertaş' is used as a proper name of an individual, specifically a craftsman known for working with stones.
Bu köyde ertaş taş ustası çok iyi işler yapıyor.
In this village, the stone craftsman Ertaş creates very good works.
Here, 'ertaş' refers descriptively to the 'stone square,' indicating a square made of stone or associated with stones.
Köyün ertaş meydanında kutlamalar düzenlenecek.
Celebrations will be organized in the village stone square.
In this context, 'ertaş' is used to mean 'stone,' referring to the material commonly found in the natural environment.