karawaka - measles
Karawaka (i), n. Low fever. Na ratou nga mate nei te rewharewha me te karawaka (W. v, 35).
Williams Dictionary
Karawaka (ii), n. 1. A shellfish.
2. A small fresh-water fish resembling smelt. = pupuoraupo. Karawaka ma and karawaka putore, two similar fish.