What is the root of the Armenian word թագավոր (t'agavor) and what is it's relation to Greek ἀγαυός 'illustrious, nobble' and the Phrygian honorific epithet (AKENAN)-ΟΓΑϝΟΣ (ogawos)?
Edit: I am reading that the root of t'agavor is a loan from Pahlavi tāgvar 'crown bearer'. Is that true?