tauiwi (Maori) comes from Maori iwi, from Proto-Polynesian *hui, from Proto-Oceanic suʀi, from Proto-Central-Eastern Malayo-Polynesian *zuʀi, from Proto-Malayo-Polynesian duʀi, from Proto-Austronesian duʀi — thorn.
Ancestry of “tauiwi”, step by step
tauiwi traces back through two separate lines of ancestry.