ka mātua tēnā
1. that'll suffice, that's enough of that - an idiom used to indicate affirmation or to instruct.
Kua horahia te kai hei hākari mā te manuhiri. Ka whakaae te kuia o te marae ki tōna ranea ka kī atu, "Ā, ka mātua tēnā." / The tables have been laid with a feast for the visitors. The elderly woman of the marae agrees that the amount of food is sufficient, "That'll be enough."
