flocc-, floccu- +
(Latin: tuft or cluster, as of wool)
It is a combination of: flocci, a "tuft of wool"; plus nauci from naucum, "a trifling thing, worthless" plus nihili from Latin nihil, "nothing" plus pili, the plural of pilus, a "hair" or "trifle"; plus the suffix -fication, to make the combination a noun.
Listed in the well-known Eton Latin Grammar of Eton College in the UK.
The Oxford English Dictionary shows the first use of the word by William Shetstone in 1777: "I loved him for nothing so much as his flocci-nauci-nihili-pili-fication of money."
2. Woolly; bearing flocci; specifically, in botany, having tufts of soft woolly hairs, which are often deciduous.
2. To cause (clouds) to form fluffy masses.
3. To form lumpy or fluffy masses.
2. Composed of or containing wooly masses.
3. A reference to a fluid or culture containing whitish shreds of mucus.
4. Flaky, waxy, and woollike, as the secretion covering some insects.
2. A tuft of fine hairs on the legs of certain insects.
3. In anatomy, either of two small lobes on the lower posterior border of each lobe of the cerebellum.
4. In astronomy, any of various masses of gases appearing as bright or dark patches on the sun's surface.