Ngahau. 1. a. Infected by example.
2. Brisk, hearty. He korero ngahau na ratou (J. iii 30).
3. n. Force of example. E kore au e pai ki te ngahau o tetahi iwi.
4. Heartiness.
5. Dance. Ko te ope ra e mahi ana i te takaro, i te haka, i te waiata, i te ngahau (T. 92).
whakangahau, v.i. Lead by example, encourage, amuse.
ngangahau, a. Active, spirited, zealous.
Williams Dictionary