tana
1. (determiner) his, her - when talking of one thing. A possessive determiner which must be followed by a noun, unlike tāna and tōna. This is the neutral or informal form and is not governed by the a and o categories.
(Te Kākano Textbook (Ed. 2): 52-56, 108-110; Te Kākano Study Guide (Ed. 1): 1;)
See also tona