from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The marsh marigold, Caltha palustris; also used for other similar plants.
from The Century Dictionary and Cyclopedia
- n. A local name of the marsh-marigold, Caltha palustris, of the white water-lily, Castalia speciosa (Nymphæa alba), and of the yellow water-lily, Nymphæa (Nuphar) lutea. Britten and Holland.
Sorry, no etymologies found.
Some people have invented what I think very ugly names for this showy plant, such as horse-blob, water-blob.