BUTTERCUP
buttercup, butterflower, butter-flower, crowfoot, goldcup, kingcup
(noun) any of various plants of the genus Ranunculus
Source: WordNet® 3.1
Etymology
Noun
buttercup (plural buttercups)
Any of many herbs, of the genus Ranunculus, having yellow flowers; the crowfoot.
Any flower of the genus Narcissus; a daffodil.
Affectionate or ironic term of address.
Synonyms
• ranunculus, crowfoot
Source: Wiktionary
But"ter*cup`, n. (Bot.)
Definition: A plant of the genus Ranunculus, or crowfoot, particularly R.
bulbosus, with bright yellow flowers; -- called also butterflower,
golden cup, and kingcup. It is the cuckoobud of Shakespeare.
Source: Webster’s Unabridged Dictionary 1913 Edition