whakatekau
1. (noun) to tithe, tenth part - give one-tenth of one's produce or earnings. This is a particular use of the prefix whaka- with numerals for fractions but is uncommon in modern Māori.
Āta wehea te whakatekau o ēnei moni mō ngā mahi a Ihowā tō tātou Atua, arā, mō Tōna Hāhi, mō te kawe i te Rongo Pai ki ngā Tauiwi, mō te whāngai rawakore, pouaru, tūroro, me ērā atu tini mahi pai, mahi aroha (TP 1/9/1901:5). / Carefully divide off a tenth of this money for the work of Jehovah, our God, that is, for His Church, for conveying the Gospel to the heathens, for feeding the poor, widows, invalids, and for those many good works and deeds of charity.