1. (verb) (-tia) to grow old, grow up.
I te mea kua tino kaumātua rawa atu te Mohi Tūrei rāua ko Tamihana Huata, ka whakaarohia e te Hāhi me penihana rāua (TP 4/1907:4). / Because Mohi Tūrei and Tamihana Huata are very elderly, the church thinks that they should receive pensions.
Kua kaumātuatia a ia, ā, ko tōna kanohi kurehe e kitea atu ana i raro i ōna makawe mā (TWK 35:19). / He had become old and his wrinkled face could be seen under his white hair.
3. (noun) adult, elder, elderly man, elderly woman, old man - a person of status within the whānau.