Etymologically

Etymology and origin of the Ancient Greek word ποῖος

Confidence
Established
Formation
Derivation
First attested
700s BC Homer, Iliad
From
Proto-Indo-European *kʷo-
Ultimate origin
Proto-Indo-European *kʷos

Pronunciation

  • 5th-century BC Attic: /pôi̯.os/[1]
  • 4th-century AD Koine: /ˈpy.os/[1]
  • 10th-century Byzantine: /ˈpy.os/[1]

Forms

ποῖος (poîos) m (feminine ποίᾱ, neuter ποῖον)[1] Ionic κοῖος.[2][3]

Etymology

It is from Proto-Indo-European *kʷo- (“who?”), the interrogative stem, with the suffix seen in τοῖος (toîos) and οἷος (hoîos).[3][1][4] The Ionic form is κοῖος (koîos).[3][2]

Earliest recorded meaning

In Homer it mostly expresses surprise or anger: “what a word you have spoken!” (Iliad 1.552); the Odyssey also uses it in simple questions.[2][5]

Semantic evolution

In comedy and in Plato's dialogues a speaker repeats a word just used with ποῖος, in scornful surprise.[2][5] With the article it asks which of things already mentioned.[5][2] In the New Testament it can mean “whose?”.[5][6]

Medieval Greek pronounced it with synizesis, as ποιος (piós).[7][8] In Modern Greek ποιος (pios) means “who? which?”.[8][9]

Timeline

  • Homer – The Iliad uses it in angry exclamations.[2][5]
  • 5th century BC – Herodotus uses the Ionic form κοῖος (koîos).[2]
  • 5th–4th century BC – Aristophanes uses it to throw back a word with scorn.[2][5]
  • 1st century AD – The New Testament uses it in questions such as “by what law?”.[6]
  • Modern Greek – ποιος (pios) is the usual word for “who?”.[8]

Meanings

Pronoun

  1. Of what kind? what sort of?[2][5]
  2. Which? what?, especially of place or time.[5]
  3. In exclamations, expressing surprise or anger: what![2][5]
  4. Repeating another speaker's word in scorn: what do you mean by...?[2][5]
  5. (New Testament) Whose?[5]

Word family

  • ποιός (poiós)
  • τοῖος (toîos)
  • οἷος (hoîos)

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  3. ^ a b c 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
  4. ^ 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
  5. ^ a b c d e f g h i j k Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  6. ^ a b 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
  7. ^ Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
  8. ^ a b c Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  9. ^ Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας

Related etymologies

Cite this entry

“Ποῖος.” Etymologically, 1 Nov. 2026, etymologically.com/grc/%CF%80%CE%BF%E1%BF%96%CE%BF%CF%82. Accessed 2 Nov. 2026.

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