Khmer រុយ

← Bahnar roi (cognate)

← Car Nicobarese ṛūöi (cognate)

← Eastern Lawa โร-อี (cognate)

← Proto-Mon-Khmer *ruj (inherited)

← Pacoh riroi (cognate)

← Vietnamese ruồi (cognate)

→ Semai rooy (cognate)

→ Vietnamese ruồi (cognate)