Etymograph

English

gnotobiont

Gnotobiont comes from Ancient Greek γνωτός ‘known’, and goes back to Proto-Indo-European *ǵneh₃- ‘to recognise, to know’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵneh₃-‘to recognise, to know’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ǵn̥h₃tós‘known’reconstructed
  3. Ancient Greekc. 800–300 BCEγνωτόςgnōtós‘known’
  4. Englishtodaygnotobiont

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵneh₃-‘to recognise, to know’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ǵn̥h₃tós‘known’reconstructed
  3. Ancient Greekc. 800–300 BCEγνωτόςgnōtós‘known’
  4. Englishtodaygnotobiont

Linked words

through Proto-Indo-European *ǵneh₃- ‘to recognise, to know’

can, could, know, normal, note, notice, narrative, recognize, glory, ken, ignore, keen, recognition, con, cognitive, noble, norm, ignorant, diagnostic, notion, cunning, notorious, quaint, prognosis, narration, nobility, cognition, canny, notation, gnome, incognito, notary, notoriety, agnostic, connoisseur, uncouth, canna, kith, recognizance, cognizance, 91 more

Today it means

noun Any laboratory animal having a specified and completely known microflora and microfauna.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *ǵneh₃- / gnotobiont