ninihi. 1. a. Steep.
2. Neap of the tide. He tai ninihi.
3. v.i. Move stealthily, steal away.
4. v.t. Come stealthily upon, surprise.
5. n. Surprise party in war. Kia marama te titiro ki uta ra, ki te haramaitanga o te ninihi taua na Te Ruawai.
6. A species of shark. Whakamau atu i to matau ki te ninihi i tai ra (M. 264).
7. Dizziness, timidity.
Williams Dictionary