Kōhua. 1. n. Maori oven. ‖ kohu (ii).
2. A vessel used for boiling food by means of heated stones, boiler.
3. A species of eel.
4. v.t. Cook by boiling with heated stones, boil. Ka ki nga ipu i nga koko, ka mauria ki te ahi, ka kohuatia (T. 33). Me huahua taua ki te wai kohua (M. 281). In preserving a head the inside of the skull was well washed with water thus heated, hence upoko-kohua, poko-kohua, was regarded as a curse.
Williams Dictionary