2. (verb) to pump.
Ko te mahi a ngā tāngata i runga, i te mea kāore e taea atu te āwhina ngā mea kua mau atu rā ki raro, he mapu hau atu mō rātou (TP 10/1912:11). / Because they weren't able to help the ones caught underground, the task of the people above was to pump air to them.
3. (noun) flood, pump.