pāpaka, n. 1. Crab.
2. Scab on a sore, tetter, herpes.
3. A beetle.
4. A variety of fern root.
5. A variety of potato with dark flesh.
6. A fish.
7. Slabs placed horizontally between the uprights of the walls, forming a skirting board in a house.
8. A light-coloured variety of eel.
Williams Dictionary