Etymologically

Etymology and origin of the Latin word embryo

Confidence
Established
Formation
Borrowing
First attested
1200s Albertus Magnus More words from the 12th century
Borrowed from
Ancient Greek ἔμβρυον
Ultimate origin
Ancient Greek ἔμβρυον
Etymology tree
inherited borrowed derived
Ancient Greek ἐν (en)
Ancient Greek ἔμβρυον (émbruon)
Latin embryō
English embryo
From the same root
Ancient Greek ἔμπεδος (émpedos) ← ἐν
Ancient Greek ἐνεργός (energós) ← ἐν
Ancient Greek ἔνθεος (éntheos) ← ἐν
English ellipsis ← ἐν
English empathy ← ἐν
English parenthesis ← ἐν

Forms

embryo m (genitive embryonis); third declension[1] Also spelled embrio.[2][3] The Hungarian medieval dictionary treats it as feminine,[3] and Köbler as neuter.[4]

Etymology

It is borrowed from Ancient Greek ἔμβρυον (émbruon, “embryo, unborn young”),[5][4][2] which is made of ἐν (en, “in”) and βρύω (brúō, “to swell, be full”).[6][4] Köbler connects the verb, with a question mark, with Proto-Indo-European *gʷeru-.[4] The Italian dictionary of Conte calls the Latin word medieval, with the forms ⟨embryo⟩ and ⟨embryon⟩.[7]

Earliest recorded meaning

The word first appears in a bilingual glossary, which equates embryo with Greek ἔμβρυον;[5][8] Köbler likewise knows it first from glosses.[4] In texts it is found from the Middle Ages on, meaning an embryo.[1][2]

Semantic evolution

Medieval natural philosophers used it for the unborn young in the womb: Albertus Magnus writes that the nourishment of the embryo comes from the male seed, and Thomas Aquinas speaks of embryos in contact with the womb.[1] Writers cited by the British medieval dictionary describe the seed becoming an embryo before it is a fetus.[2] The word was also used in medieval Hungary and Bohemia for a human fetus.[3][9]

English took it over from Medieval Latin in the 14th century.[6]

Timeline

  • 13th century – Albertus Magnus writes of the nourishment of the embryo.[1][4]
  • 3rd quarter of the 13th century – Thomas Aquinas speaks of embryos in the womb.[1][4]
  • mid-14th century – Borrowed into English as embryo.[6]

Meanings

Noun

  1. (Medieval Latin) An embryo, the unborn young in the womb.[1][2]
  2. (Medieval Latin) A human fetus.[3][9]

References

  1. ^ a b c d e f Jeanneau, Gérard; Woitrain, Jean-Paul; Hassid, Jean-Claude (2017), Dictionnaire latin-français, online ed., prima-elementa.fr
  2. ^ a b c d e Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  3. ^ a b c d Bartal, Antal, et al. (1987–), Lexicon Latinitatis Medii Aevi Hungariae, Budapest: Akadémiai Kiadó; online ed. ELTE
  4. ^ a b c d e f g Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  7. ^ Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ Goetz, Georg (1888–1923), Corpus glossariorum Latinorum, Leipzig: Teubner; vols. VI–VII Thesaurus glossarum emendatarum, digital ed. CGLO, Munich: Bayerische Akademie der Wissenschaften
  9. ^ a b Latinitatis medii aevi lexicon Bohemorum / Slovník středověké latiny v českých zemích (1977–), Prague: Academia; electronic version, Institute of Philosophy of the Czech Academy of Sciences

Related etymologies

Cite this entry

“Embryo.” Etymologically, 7 Nov. 2026, etymologically.com/la/embryo. Accessed 8 Nov. 2026.

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