The story
- Māori · borrowed fromWhanganui
- English todayWanganui
From Māori Whanganui. The spelling of Sense 1 and Sense 2 reflects a dialectal realization of the ⟨wh⟩ phoneme as [ˀw] in Taranaki and Manawatū-Whanganui.
Etymology from Wiktionary, CC BY-SA 4.0.