Etymograph

English

fluidity

Fluidity comes from Latin fluidus ‘liquid, fluid, flowing’, and goes back to fluō ‘to flow, stream, pour’.

  1. Latinc. 75 BCE–200 CEfluō‘to flow, stream, pour’
  2. Latin, derivedc. 75 BCE–200 CEfluidus‘liquid, fluid, flowing’
  3. Latin, derivedc. 75 BCE–200 CEfluiditās
  4. Frenchc. 1600–presentfluidité
  5. Englishearliest quotation 1944fluidity

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Latinc. 75 BCE–200 CEfluō‘to flow, stream, pour’
  2. Latin, derivedc. 75 BCE–200 CEfluidus‘liquid, fluid, flowing’
  3. Latin, derivedc. 75 BCE–200 CEfluiditās
  4. Frenchc. 1600–presentfluidité
  5. Englishearliest quotation 1944fluidity

Earliest quotation: 1944, and December, The French Four-Cylinder Compound Engine: “In addition to all this, the fluidity of the…”

Linked words

through Proto-Indo-European *bʰluH-yé-ti

confluent, 25 more

through Latin fluō ‘to flow, stream, pour’

influence, influx, fluent, flux, confluence, fluctuate, fluency, fluctuation, affluence, flume, fluorine, fluvial, fluorite, fluor, 26 more

Today it means

noun The state of being fluid rather than viscous

Language periods are conventional ranges, not dates for this word.

Etymograph / Latin fluō / fluidity