1. Redup. of kupu 1; to surge forth, as lava. (For. 6:545.) See ex., unu 2. (PPN tuputupu.)
2. n. General name for ferns on a single stem, such as kupukupu 3. ʻAʻala kupukupu ka uka o Kāne-hoa, fragrant with ferns is inland of Kāne-hoa.
3. n. Sword fern (Nephrolepis exaltata), a long, narrow fern with many lateral divisions; it was sometimes added to the hula altar to Laka, for knowledge to kupu (sprout). (Neal 14–5.) Also niʻaniʻau and palapalai on Niʻihau, and ʻōkupukupu.