Etymologically

Etymology and origin of the Ancient Greek word φλύω

Confidence
Disputed
Formation
Inherited
First attested
Homer, Iliad
Inherited from
Proto-Hellenic *pʰlūō
Ultimate origin
Proto-Indo-European *bʰlewH-

Pronunciation

  • 5th-century BC Attic: /pʰly̌ː.ɔː/[1]
  • 4th-century AD Koine: /ˈɸly.o/[1]
  • 10th-century Byzantine: /ˈfly.o/[1]

Forms

φλῡ́ω (phlū́ō); aorist ἔφλῠσα; extended presents φλύζω (Nicander) and φλύσσω (Hesychius), aorist ἔφλυξα.[2][3]

Etymology

It is inherited from Proto-Hellenic *pʰlūō,[1] probably inherited from Proto-Indo-European *bʰlewH- (“to overflow”).[1] Beekes treats it as the zero grade beside φλέω (phléō, “to overflow, teem”), whose imperfect may first have been an aorist.[4][2] The closest outside match is Latin fluō (“to flow”).[4][2] An extended stem with -γ- appears in φλύζω (phlúzō) and φλύκταινα (phlúktaina, “blister”).[2] Beekes also notes that if both verbs belong with βλύζω (blúzō, “to bubble up”), the whole group could be Pre-Greek.[4]

Beekes and Wiktionary separate a homonymous verb meaning to vomit, known from Hesychius and a compound in Archilochus, and derive it from Proto-Indo-European *bʰlew- (“to vomit”), cognate with Proto-Slavic *bľuti (“to vomit”) and Lithuanian bliáuti (“to bleat, weep”).[4][1] Wiktionary thinks it likely of the same origin as φλύω “to bubble”.[1] Beekes finds the Slavic and Baltic link semantically uncompelling for the verb “to overflow”.[4]

Earliest recorded meaning

It is first found in the Iliad (21.361), where the streams of the river boil up under Hephaestus' fire.[5][3]

Semantic evolution

Aeschylus uses it figuratively, “to babble, talk idly”, and of letters on a shield that “boil over” with boasts.[3][6] Hippocratic writers have it of bleeding that bursts out.[3] Of plants and fruit it meant to be full of sap and to thrive: Plutarch calls this sense poetic, and Aelian explains it as “to bear much fruit”; the Attic deme Φλυή was perhaps named after this fertility.[2][3]

The sense of idle talk lives on in φλυαρέω (phluāréō, “to talk nonsense”) and φλύαξ (phlúax).[2][4]

Timeline

  • Homer – The Iliad uses it of river water boiling up.[5][3]
  • 7th century BC – Archilochus has a compound ἀπέφλυσα “vomited”.[4][7]
  • 6th–5th century BC – Aeschylus uses it of talking idly.[3][7]
  • 1st–2nd century AD – Plutarch records its poetic sense “to be full of sap”.[2][7]

Meanings

Verb

  1. To boil over, bubble up; to burst out.[3][1]
  2. (figurative) To overflow with words, babble.[3][1]
  3. (of plants and fruit) To be full of sap, to thrive.[2][1]
  4. To vomit (Hesychius).[4][1]

Word family

  • φλυαρέω (phluāréō)
  • φλύζω (phlúzō)
  • φλύος (phlúos)
  • φλέω (phléō)
  • φλύκταινα (phlúktaina)

References

  1. ^ a b c d e f g h i j k Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Chantraine, Pierre (2009), Dictionnaire étymologique de la langue grecque: histoire des mots, new ed. with a supplement (Chroniques d'étymologie grecque 1–10), Paris: Klincksieck
  3. ^ a b c d e f g h i Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  4. ^ a b c d e f g h Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill
  5. ^ a b Cunliffe, Richard John (1924), A Lexicon of the Homeric Dialect, London: Blackie and Son
  6. ^ Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  7. ^ a b c Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge

Related etymologies

Cite this entry

“Φλύω.” Etymologically, 24 Oct. 2026, etymologically.com/grc/%CF%86%CE%BB%CF%8D%CF%89. Accessed 24 Oct. 2026.

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