While there are many languages spoken in New Zealand, none of them start with the letter "M". If you're interested in learning more about the languages of New Zealand, I can provide you with some information on the main ones, such as:
* Māori: The indigenous language of New Zealand, with a strong cultural and historical significance.
* English: The most widely spoken language in New Zealand, due to its colonial history.
* New Zealand Sign Language: The primary sign language used by the deaf community in New Zealand.
Let me know if you'd like to know more about these languages or any others spoken in New Zealand.