kaʻupu
1. n. Perhaps Laysan albatross (Diomedea immutabilis); it breeds on the Northwestern Hawaiian Islands, Niʻihau, and Moku Manu. See song, Elbert and Mahoe 65. Kaʻupu hehi ʻale, billow-treading kaʻupu. (PCP takupu.)
2. n. A native rather narrow fern (Polystichum hillebrandii) with scaly stems, the fronds twice divided. Also papaʻoi.