tamaiti whakaangi
1. (noun) stepchild, niece, nephew.
Ka moea e ia a Agnes Waikeria Anihana – ko Bella tētahi o ōna īngoa – o Ngāti Maniapoto, he tamaiti whakaangi nā Te Puea Hērangi ki te taha ki tōna whaea (TTR 1998:130). / He married Agnes Waikeria Anihana (Anderson), also known as Bella, of Ngāti Maniapoto, a niece of Te Puea Hērangi on her mother’s side.