Etymologically

Etymology and origin of the Ancient Greek word πλήθω

Confidence
Probable
Formation
Inherited
First attested
700s BC Homer, Iliad More words from the 8th century BC
Inherited from
Proto-Hellenic *plḗtʰō
Ultimate origin
Proto-Indo-European *pleh₁-
Derivations
πλῆθος (plêthos)
πληθώρα (plēthṓra)

Pronunciation

  • 5th-century BC Attic: /plɛ̌ː.tʰɔː/[1]
  • 4th-century AD Koine: /ˈpli.θo/[1]
  • 10th-century Byzantine: /ˈpli.θo/[1]

Forms

πλήθω (plḗthō) [1] Perfect with present sense πέπληθα, pluperfect ἐπεπλήθει; epic imperfect πλῆθε.[2][3][4]

Etymology

It is inherited from Proto-Hellenic *plḗtʰō,[1] from Proto-Indo-European *pleh₁- (“to fill, become full”).[1][5] The LIV reconstructs a present with the suffix *-dʰe-, *pléh₁-dʰe-, and compares Old Avestan frādat̰ (“furthers”).[5] Beekes, however, counts the ⟨θ⟩ of πλῆθος (plêthos), of this verb and of its perfect among presumably young Greek formations, like βρίθω (bríthō) beside βρῖθος (brîthos).[6] Πάπυρος describes the ending as a present suffix added to the stem of πίμπλημι (pímplēmi, “to fill”), as in νήθω (nḗthō) and πρήθω (prḗthō).[7]

The root is also in Latin pleō (“to fill”) and Sanskrit पिपर्ति (piparti, “fills”).[1][8]

Earliest recorded meaning

Homer uses it intransitively, to be full: of rivers in flood, of a river filled with corpses, of tables loaded with food, and of the full moon.[9][4][2]

Semantic evolution

In Archaic and Classical poetry it kept the sense “to be full”: Hesiod has barns full of food and a river swollen with winter rain, Aeschylus a sea full of wreckage and blood, and Pindar a thronging crowd in the market-place.[3][2][10] Sappho too speaks of the full moon.[2][3] In Attic prose it survived only in the phrase “when the agora is full”, that is, in the middle of the morning, used by Thucydides, Plato and Xenophon.[3][2]

Hellenistic poets used the old perfect πέπληθα with a present sense, as Theocritus of a spring brimming with water.[2][3] Only later poets, such as Oppian and Quintus of Smyrna, made it transitive, “to fill”.[2]

Timeline

  • Homer – The Iliad uses it of rivers in flood and of the full moon.[9][2]
  • Before the 6th century BC – Hesiod uses it of barns full of food and of a river swollen with rain.[3][2][11]
  • 6th–5th century BC – Aeschylus uses it of the sea full of wreckage, and Pindar of a thronging crowd.[2][10][11]
  • 5th century BC – Thucydides dates events to the time “when the agora is full”.[3][11]
  • 4th–3rd century BC – Theocritus uses the perfect πέπληθα of a brimming spring.[2][11]
  • 2nd–3rd century AD – Oppian and Quintus of Smyrna use it transitively, “to fill”.[2][11]

Meanings

Verb

  1. To be full, be filled; with the genitive or dative of what fills.[2][3]
  2. Of rivers, to be in flood, be swollen.[2][3][9]
  3. Of the moon, to be full.[2][3][9]
  4. Of a crowd, to throng, gather in numbers.[3][10]
  5. In the phrase πληθούσης ἀγορᾶς, “when the agora is full”: in the middle of the morning.[3][2]
  6. (later poetry) To fill something.[2]

Word family

  • περιπλήθω (periplḗthō)
  • ἀναπλήθω (anaplḗthō)

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  3. ^ a b c d e f g h i j k l Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  4. ^ a b Autenrieth, Georg (1891), A Homeric Dictionary for Schools and Colleges, tr. Robert P. Keep, New York: Harper and Brothers
  5. ^ a b Rix, Helmut, et al. (2001), Lexikon der indogermanischen Verben, 2nd ed., Wiesbaden: Reichert
  6. ^ 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
  7. ^ Πάπυρος–Larousse–Britannica, Μέγα Λεξικό της Ελληνικής Γλώσσας, Athens: Πάπυρος
  8. ^ Pokorny, Julius (1959), Indogermanisches etymologisches Wörterbuch, Bern; Munich: Francke
  9. ^ a b c d Cunliffe, Richard John (1924), A Lexicon of the Homeric Dialect, London: Blackie and Son
  10. ^ a b c Slater, William J. (1969), Lexicon to Pindar, Berlin: De Gruyter
  11. ^ a b c d e Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge

Related etymologies

Cite this entry

“Πλήθω.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%CF%80%CE%BB%CE%AE%CE%B8%CF%89. Accessed 14 Nov. 2026.

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