Etymologically

ἀστρολόγος

Etymology and origin of the Ancient Greek word ἀστρολόγος

Confidence
Established
Formation
Compound
First attested
400–300 BC Xenophon, Memorabilia More words from the 4th century BC
Ultimate origin
Ancient Greek ἄστρον,λέγω
Etymology tree
inherited borrowed derived
Ancient Greek ἄστρον (ástron)
Latin astrum
Ancient Greek ἀστρολόγος (astrológos)
Latin astrologus
From the same root
Ancient Greek ἀστρολογία (astrologíā) ← ἄστρον
Ancient Greek ἀστρονομία (astronomía) ← ἄστρον
English astrology ← ἄστρον
English astronomy ← ἄστρον
English disaster ← ἄστρον
Latin astrālis ← astrum
Spanish desastre ← astrum

Pronunciation

  • 5th-century BC Attic: /as.tro.ló.ɡos/[1]
  • 4th-century AD Koine: /as.troˈlo.ɣos/[1]
  • 10th-century Byzantine: /as.troˈlo.ɣos/[1]

Forms

ᾰ̓στρολόγος (astrológos) m or f (neuter ᾰ̓στρολόγον); second declension[1]

Etymology

It is a compound from Ancient Greek ἄστρον (ástron, “star”) + λέγω (légō, “to reckon, tell”), “one who reckons or describes the stars”.[2][3][4] Wiktionary takes the first part as ἀστήρ (astḗr, “star”).[1]

Earliest recorded meaning

It is first found in Xenophon's Memorabilia, where the question is whether someone wants to become an astronomer.[5][6][4]

Semantic evolution

In classical Greek the word meant an astronomer, one who studies and explains the movements of the stars.[4][5] From the Hellenistic period on it also, and later chiefly, meant an astrologer, who uses the stars to foretell events: Epicurus scorns the “slavish devices” of astrologers, the Septuagint's Isaiah mentions them, and so does Sextus Empiricus.[6][5][7] It was borrowed as Latin astrologus.[8]

Medieval vernacular Greek used it for one who foretells the future from the stars.[9] Modern Greek αστρολόγος (astrológos) is a learned word taken from the Hellenistic one, and only means astrologer; the ancient sense “astronomer” has passed to other words.[10]

Timeline

  • 5th–4th century BC – Xenophon uses it for an astronomer.[5][6]
  • 4th–3rd century BC – Epicurus uses it for an astrologer.[6][5]
  • 2nd century BC – The Septuagint's Isaiah uses it for astrologers.[7][11]
  • 1st century BC – A Delphic inscription records an astrologer.[5][6]
  • 1100–1669 – Vernacular Greek uses it for a fortune-teller who reads the stars.[9]
  • Modern Greek – The learned word αστρολόγος (astrológos) means an astrologer.[10]

Meanings

Noun

  1. An astronomer.[5][4][6]
  2. An astrologer.[5][4][6]

Word family

  • ἀστρονόμος (astronómos)
  • Latin astrologus

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Bailly, Anatole (2020), Dictionnaire grec-français, Bailly 2020 Hugo Chávez ed., ed. Gérard Gréco et al.
  3. ^ Πάπυρος–Larousse–Britannica, Μέγα Λεξικό της Ελληνικής Γλώσσας, Athens: Πάπυρος
  4. ^ a b c d e Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  5. ^ a b c d e f g h Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  6. ^ a b c d e f g Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
  7. ^ a b Lust, Johan; Eynikel, Erik; Hauspie, Katrin (2003), Greek-English Lexicon of the Septuagint, rev. ed., Stuttgart: Deutsche Bibelgesellschaft
  8. ^ Saalfeld, Günther Alexander (1874), Index Graecorum vocabulorum in linguam latinam translatorum, Berlin: Weidmann
  9. ^ a b Kriaras, Emmanuel, Επιτομή του Λεξικού της μεσαιωνικής ελληνικής δημώδους γραμματείας 1100–1669, Κέντρο Ελληνικής Γλώσσας, https://www.greek-language.gr
  10. ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  11. ^ Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux
Cite this entry

“Ἀστρολόγος.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%E1%BC%80%CF%83%CF%84%CF%81%CE%BF%CE%BB%CF%8C%CE%B3%CE%BF%CF%82. Accessed 14 Nov. 2026.

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