Where does “Gru-di-a” come from?

Gru-di-a (Vietnamese) comes from Russian Гру́зия, from Russian грузи́н, from Old East Slavic гурзи — Georgians.

Gru-di-a (Vietnamese): Georgian

Definitions

Step	Language	Word	Meaning
1	Russian	Гру́зия	—
2	Russian	грузи́н	—
3	Old East Slavic	гурзи	Georgians

Gru-di-a — Etymology, Origin & Word History | Etymology Explorer