butterwortEtymologyFrom butter + wort: perhaps from the ability of the leaves to coagulate milk, or from their peculiar sliminess.butterwort means any plant of the insectivorous genus Pinguicula. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounAny plant of the insectivorous genus Pinguicula.“As he climbed up through the golden gorse he would look for orchids amongst the commoner cotton grass, bog asphodel and butterwort[.]”common butterwort (Pinguicula vulgaris)