English
pleuston
Pleuston comes from Ancient Greek πλεῦσις ‘sailing’, from πλέω ‘to sail (in a boat)’, and ultimately from Proto-Indo-European *plew-.
- Proto-Indo-Europeanc. 4500–2500 BCE*plew-1‘to sail, flow’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*pléwō1‘to sail’reconstructed
- Ancient Greekc. 800–300 BCEπλέω2‘to sail (in a boat)’
- Ancient Greekc. 800–300 BCEπλεῦσις2pleûsis‘sailing’
- Englishearliest quotation 1974pleuston2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Ancient Greek πλέω
- 2 Wiktionary, English pleuston
- Earliest quotation in Wiktionary’s entry: 1974, G. O. Mackie, VIII: Location, Flotation and Dispersal: “They^([Cnidarians]) are also the dominant organisms of the marine…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*plew-Wiktionary, Ancient Greek πλέω‘to sail, flow’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*pléwōWiktionary, Ancient Greek πλέω‘to sail’reconstructed
- Ancient Greekc. 800–300 BCEπλέωWiktionary, English pleuston‘to sail (in a boat)’
- Ancient Greekc. 800–300 BCEπλεῦσιςWiktionary, English pleustonpleûsis‘sailing’
- Englishearliest quotation 1974pleustonWiktionary, English pleuston. Earliest quotation in Wiktionary’s entry: 1974, G. O. Mackie, VIII: Location, Flotation and Dispersal: “They^([Cnidarians]) are also the dominant organisms of the marine…”
The story
The -t- is on analogy with the coordinate terms.
Linked words
through Proto-Indo-European *plew- ‘to sail, flow’
fly, flow, flew, pneumonia, fowl, plough, flue, flay, plover, 24 more
through Ancient Greek πλέω ‘to sail (in a boat)’
Today it means
noun The organisms that live floating at the surface of water.
Sources
Sources: Wiktionary, “pleuston”; the older steps come from the Wiktionary entry for Ancient Greek πλέω. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *plew- / pleuston