The story
- Welsh · borrowed fromllymru“a sour jelly derived from boiled oatmeal”
- English todayflummery
Borrowed from Welsh llymru (“a sour jelly derived from boiled oatmeal”), of uncertain origin, perhaps related to llymrig (“slippery”). For phonetic development, compare origin of Floyd.
Etymology from Wiktionary, CC BY-SA 4.0.