Maori rua

← Proto-Austronesian *duSa (inherited(mi/mak))

← Proto-Austronesian *duSa (inherited)

← Malay lubang (cognate)

← Proto-Central-Eastern Malayo-Polynesian *dua (inherited)

← Proto-Oceanic *rua (inherited)

← Proto-Eastern Polynesian *rua (inherited)

← Proto-Nuclear Polynesian *rua (inherited)

← Proto-Polynesian *rua (inherited)

← Proto-Malayo-Polynesian *duha (inherited(mi/mak))

← Proto-Malayo-Polynesian *duha (inherited)

← Proto-Eastern Malayo-Polynesian *dua (inherited)

→ Rapa Nui rua (cognate)