Proto-Eastern Malayo-Polynesian *(i-)aku

→ Hawaiian au (inherited)

→ Hawaiian wau (derived)

→ Hawaiian aʻu (inherited)

→ Maori au (inherited)

→ Niuean au (inherited)

→ Rotuman gou (inherited)

→ Samoan a'u (inherited)

→ Samoan aʻu (inherited)

→ Tongan au (inherited)

→ Tongan ou (derived)

→ Tuvaluan au (inherited)

→ Tahitian au (inherited)