Middle English word turret comes from Ancient Greek τύρσις, and later Old French tur (Tower.)

Detailed word origin of turret

Dictionary entry	Language	Definition
τύρσις	Ancient Greek (grc)
turrem	Latin (lat)
tur	Old French (fro)	Tower.
turette	Anglo-Norman (xno)
toret	Middle English (enm)

Words with the same origin as turret