2. (noun) repository of knowledge, authority.
Haere atu, te kaumātua mōrehu i roto o Heretaunga, i te mea ko koe anake te mōrehu kaumātua, te pou herenga o ngā kupu o roto o te ao tawhito (TTT 1/8/1928:825). / Farewell, the surviving elder from within Hawke's Bay because you alone were the last remaining elder, the repository of knowledge of the ancient world.
3. (noun) basis, reference point.
He pou herenga atu tēnei nā Tūhoe i ōna kōrero o tōna tāhuhu kōrero me ōna tūtohu rohe whenua. / This is used as a reference point by Tūhoe in determining the occurrence of events in Tūhoe history and the location of tribal boundaries.