The naming of the wards is all a PC (Political Correctness) exercise...that most of the wards are given a Maori name (and it is good to see Howick was not changed to Te Irirangi as people protested ~).
Sometimes I m wondering why dont they simply also rename AUCKLAND to "Tamaki Makaurau" or even rename New Zealand to "Aoteaora".... then no one on earth other than those in these remote islands know where the hell this city/country is located ....