English
agnogenic
Agnogenic comes from Latin nosco ‘know’, from Proto-Indo-European *ǵn̥h₃sḱéti ‘to recognise’, and ultimately from *ǵneh₃-.
- Proto-Indo-Europeanc. 4500–2500 BCE*ǵneh₃-1‘to recognise’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*ǵn̥h₃sḱéti1‘to recognise’reconstructed
- Proto-Italicc. 1500–700 BCE*gnōskō1‘to know, get to know’reconstructed
- Latinc. 75 BCE–200 CEnosco2as gnōscō‘know’
- Englishtodayagnogenic2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin nosco
- 2 Wiktionary, English agnogenic
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*ǵneh₃-Wiktionary, Latin nosco‘to recognise’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*ǵn̥h₃sḱétiWiktionary, Latin nosco‘to recognise’reconstructed
- Proto-Italicc. 1500–700 BCE*gnōskōWiktionary, Latin nosco‘to know, get to know’reconstructed
- Latinc. 75 BCE–200 CEnoscoWiktionary, English agnogenicas gnōscō‘know’
- EnglishtodayagnogenicWiktionary, English agnogenic
Linked words
through Proto-Indo-European *ǵneh₃- ‘to recognise’
can, could, know, normal, narrative, glory, con, ignore, recognition, ken, keen, ignorant, norm, narration, cunning, canny, prognosis, connoisseur, uncouth, canna, kith, cun, gnosis, recognizance, 82 more
through Proto-Indo-European *ǵn̥h₃sḱéti ‘to recognise’
diagnostic, gnome, agnostic, 38 more
through Proto-Italic *gnōskō ‘to know, get to know’
recognize, cognitive, quaint, denote, annotation, incognito, noblesse, ignoble, precognition, 32 more
through Latin nosco ‘know’
note, notice, noble, notion, notorious, notation, nobility, notoriety, notary, cognition, acquaint, annotate, cognizance, 23 more
Today it means
adj Of unknown etiology.
Sources
Sources: Wiktionary, “agnogenic”; the older steps come from the Wiktionary entry for Latin nosco. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *ǵneh₃- / agnogenic