English
henology
Henology comes from Ancient Greek εἷς ‘one’, from Proto-Indo-European *sḗm ‘one’, and ultimately from *sem- ‘one’.
- Proto-Indo-Europeanc. 4500–2500 BCE*sem-1‘one’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*sḗm2‘one’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*hens2reconstructed
- Ancient Greekc. 800–300 BCEεἷς3heîs‘one’
- Englishtodayhenology3
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Proto-Indo-European *sḗm
- 2 Wiktionary, Ancient Greek εἷς
- 3 Wiktionary, English henology
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*sem-Wiktionary, Proto-Indo-European *sḗm‘one’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*sḗmWiktionary, Ancient Greek εἷς‘one’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*hensWiktionary, Ancient Greek εἷςreconstructed
- Ancient Greekc. 800–300 BCEεἷςWiktionary, English henologyheîs‘one’
- EnglishtodayhenologyWiktionary, English henology
Linked words
through Proto-Indo-European *sem- ‘one’
some, same, single, similar, seem, simple, simply, soft, sam, simulation, sincerely, singular, resemble, assemble, resemblance, simultaneous, simulate, sincerity, anomaly, semblance, assimilate, homeopathic, synapse, insincere, anomalous, simile, simulacrum, synchronise, homology, homolog, 45 more
through Proto-Indo-European *sḗm ‘one’
through Ancient Greek εἷς ‘one’
Today it means
noun The philosophical discourse on "The One" that appears most notably in the philosophy of Plotinus.
Sources
Sources: Wiktionary, “henology”; the older steps come from the Wiktionary entries for Proto-Indo-European *sḗm, Ancient Greek εἷς. 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 *sem- / henology