Bahnar đak

← Proto-Austroasiatic *ɗaːk (inherited)

← Halang dak (cognate)

← Khmer ទឹក (cognate)

← Koho daa (cognate)

← Proto-Bahnaric *ɗaːk (inherited)

← Mon ဍာ် (cognate)

← Undetermined *ɗaːk (mention)

← Vietnamese nước (cognate)

→ Khmer ទឹក (cognate)

→ Vietnamese nước (cognate)