Vietnamese cốc

← Bahnar klang kok (cognate)

← Khmer កុក (cognate)

← Proto-Mon-Khmer *kuk (inherited)

← Burmese ခွက် (cognate)

← Naxi kual (cognate)

← Proto-Loloish *ʔ-kokᴴ (cognate)

→ Vietnamese tách (link)