Etymologically

Etymology and origin of the Ancient Greek word πλέω

Confidence
Established
Formation
Inherited
First attested
Homer, Iliad
Inherited from
Proto-Hellenic *pléwō
Ultimate origin
Proto-Indo-European *plew-

Pronunciation

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

Forms

πλέω (pléō) [1] Epic πλείω, Epic and Ionic πλώω, future πλεύσομαι, later πλευσοῦμαι and πλεύσω, aorist ἔπλευσα, perfect πέπλευκα.[2][3] Homer uses only the present, imperfect and future.[2][3]

Etymology

It is inherited from Proto-Hellenic *pléwō,[1] inherited from Proto-Indo-European *plew- (“to sail, flow, swim”), a primary thematic present of a root that LIV glosses “to swim, float”.[4][1][5] The ⟨ϝ⟩ was lost between vowels, but before a consonant it remains as the ⟨υ⟩ of a diphthong, as in the future stem ⟨πλευσ-⟩.[1]

Cognate with Latin pluit (“it rains”) and English float.[4][1] The derivative πλοῖον (ploîon, “ship”) matches Old Norse fley (“ship”), and πλόος (plóos, “voyage”) matches Tocharian B plewe (“ship”).[4] πλύνω (plúnō, “to wash”) belongs to the same root.[4][6]

Earliest recorded meaning

In Homer it means to sail, of men and of ships; the Ionic πλώω is used of armour and corpses floating in a river.[2][3]

Semantic evolution

Herodotus uses it of a floating island and Thucydides of goods carried by sea.[2][3] Sophocles and Demosthenes speak of the city as a ship that sails upright, on an even keel.[2][3] It was very often used with prefixes, and it gave the nouns πλόος (plóos) and πλοῖον (ploîon).[4] In the New Testament it is the ordinary verb for travelling by sea, as in Luke and Acts.[7]

Medieval vernacular Greek had a form πλέγω with an aorist έπλεξα, which some dialects keep.[8] Modern Greek πλέω (pléo) is a learned continuation of the ancient verb.[9][6]

Timeline

  • Homer – The Iliad and the Odyssey use it for sailing and, in the Ionic form, for floating.[2][3]
  • 5th century BC – Herodotus uses it of a floating island.[2][3]
  • 5th century BC – Sophocles uses it of the state as a ship on an even keel.[2][3]
  • 5th century BC – Thucydides uses it of goods carried by sea.[2][3]
  • 1st century AD – Luke and Acts use it for travelling by sea.[7]
  • Medieval Greek – The vernacular has the form πλέγω.[8]
  • Modern Greek – Modern Greek πλέω (pléo) continues it as a learned word.[9]

Meanings

Verb

  1. To sail, travel by sea (of people and ships).[2][3][7]
  2. To sail over (a sea); to make (a voyage).[3]
  3. (of goods) To be carried by sea.[2][3]
  4. To float, swim.[2][3]
  5. (figurative, of a city as a ship) To sail upright, on an even keel.[2][3]

Word family

  • ἄπλοια (áploia)
  • πλοῖον (ploîon)
  • πλόος (plóos)
  • πλωτήρ (plōtḗr)
  • πλωτικός (plōtikós)
  • πλωτός (plōtós)
  • πλώω (plṓō)
  • ἀναπλέω (anapléō)
  • ἀποπλέω (apopléō)
  • διαπλέω (diapléō)
  • εἰσπλέω (eispléō)
  • πλύνω (plū́nō)
  • English float

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m 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 m n Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  4. ^ a b c d e 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. ^ Rix, Helmut, et al. (2001), Lexikon der indogermanischen Verben, 2nd ed., Wiesbaden: Reichert
  6. ^ a b Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας
  7. ^ a b c Bauer, Walter; Danker, Frederick W., et al. (2000), A Greek-English Lexicon of the New Testament and Other Early Christian Literature, 3rd ed., Chicago: University of Chicago Press
  8. ^ a b Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
  9. ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki

Related etymologies

Cite this entry

“Πλέω.” Etymologically, 24 Oct. 2026, etymologically.com/grc/%CF%80%CE%BB%CE%AD%CF%89. Accessed 24 Oct. 2026.

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