Etymologically

Etymology and origin of the Ancient Greek word πόσος

Confidence
Established
Formation
Inherited
First attested
500–400 BC Aeschylus, Persians
Inherited from
Proto-Indo-European *kʷóti
Ultimate origin
Proto-Indo-European *kʷóti

Forms

πόσος (pósos), feminine πόση, neuter πόσον.[1] Ionic (Herodotus) κόσος.[2][1]

Etymology

It is inherited from Proto-Indo-European *kʷóti (“how many”), made into an adjective in Greek, with /ti̯/ becoming /s/.[2][3] The Indo-European adverb survives in Sanskrit कति (káti) and Latin quot “how many?”.[2][3] It belongs with the interrogatives πόθεν (póthen) and with the demonstrative τόσος (tósos) “so great”.[2][3]

Earliest recorded meaning

Its earliest use in the GLAUx corpus is in Aeschylus' Persians, in a question about how great the number of ships was.[4][1]

Semantic evolution

It asks about quantity of every kind: number (“how many?”), size (“how great?”), distance (“how far?”), time (“how long?”) and value (“how much?”, the genitive πόσου “at what price?”).[1] Aristotle made the indefinite ποσός (posós) a philosophical term, and his abstract ποσότης (posótēs) means “quantity”.[2][3]

Medieval Greek kept the word, and it is still Modern Greek πόσος (pósos).[5][6][7]

Timeline

  • 6th–5th century BC – Aeschylus uses it in the Persians of the number of ships.[1][4]
  • 5th century BC – Herodotus uses the Ionic form κόσος.[1][2]
  • 5th century BC – Sophocles uses it of a length of time.[1][8]
  • 5th–4th century BC – Aristophanes and Xenophon use it of price and distance.[1][8]
  • Modern Greek – πόσος (pósos) continues the ancient word.[6][7]

Meanings

Pronoun

  1. (interrogative) Of number, how many?[1]
  2. Of size or amount, how great? how much?[1][2]
  3. Of distance, how far?[1]
  4. Of time, how long?[1]
  5. Of value, how much? πόσου “at what price?”.[1]

Word family

  • ποσότης (posótēs)
  • ποσάκις (posákis)
  • πόστος (póstos)
  • ποσός (posós)

References

  1. ^ 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
  2. ^ a b c d e f g 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
  3. ^ a b c d Frisk, Hjalmar (1960–1972), Griechisches etymologisches Wörterbuch, 3 vols, Heidelberg: Carl Winter
  4. ^ a b Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux
  5. ^ Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
  6. ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  7. ^ a b Ακαδημία Αθηνών (2014), Χρηστικό Λεξικό της Νεοελληνικής Γλώσσας, Athens: Academy of Athens
  8. ^ a b Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge

Related etymologies

Cite this entry

“Πόσος.” Etymologically, 1 Nov. 2026, etymologically.com/grc/%CF%80%CF%8C%CF%83%CE%BF%CF%82. Accessed 2 Nov. 2026.

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