Greek names of Turkish origin?

[Theo7]

Geia sas paidia

Ive got a question

My last name means west in Turkish but hellenized (of course)

The history behind my last name is -

During the Ottoman occupation of Greece my Great x7 or 8 Grandpa
and his brother from Pygros were going around secretly killing Turks, taking their weapons, money, etc. and giving it to their fellow villagers

The Turks caught on and went around to try and find my Grandpa and his brother, so they changed their name from Stassias or Stassinopolis (not sure, got to ask my Dad) to what it is today- West in Turkish

Now, what I dont know is why they would of changed their name to something of Turkish origin, what was the mentality back in those days, was this an honorary thing or what???

Thanks a lot for any insight