tuātau, tuātai, n. Time, period, season.

I tupu te reira ‘uri‘ia i te tuātau i te ‘orometua ko Kātini.
That hurricane occurred during Kātini’s time as missionary;

E tuātau meitaki te reva.
Those were good times;

‘Ea‘a te tuātau e ravea‘ia ai teia ‘anga‘anga?
When is this job going to be done? Tuātau anu, the cold season. Tuku tuātau, to allow time.

Kua tuku tuātau te ‘akavānui nōku kia kimi i tōku manako.
The judge gave me time to think it over. ī tuātau ‘ua atu, for ever.

Nō‘ou te pātireira, te mana, ē te kakā, ē tuātau ‘ua atu.
Thine is the kingdom, the power, and the glory, for ever and ever.