pīakaaka
1. (noun) rootlet, fibrous root.
Haere mai ngā pirihimana, kawea atu ki te ture, ki te aroaro o ngā Kaiwhakawā. Kite rawa ake he pīakaaka kei ngā ringa, te mahi he kuru, he wāwāhi kōwhatu mō ngā marama, mō ngā tau e hia (KO 15/3/1884:8). / The policemen came and charged him before the Judges. Then he sees that the root cause of his problems is in his hands and pounding and splitting rocks is what he has to do for many months and years.