Where does “Ha-oai” come from?

Ha-oai (Vietnamese) comes from English Hawaii, from Hawaiian Hawaiʻi, from Proto-Nuclear Polynesian Sawaiki — traditional homeland.

Ancestry of “Ha-oai”, step by step

StepLanguageWordMeaning
1EnglishHawaiiThe largest of the Hawaiian Islands
2HawaiianHawaiʻiHawaiian
3Proto-Nuclear PolynesianSawaikitraditional homeland
Every word from Proto-Nuclear Polynesian Sawaiki →Every word from Hawaiian Hawaiʻi →Every word from English Hawaii →