Etymograph

English

homaloidal

Homaloidal comes from Ancient Greek ὁμαλός ‘even, level’, and goes back to Proto-Indo-European *sem- ‘together, one’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sem-1‘together, one’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*sem-h₂-lo-s1reconstructed
  3. Ancient Greekc. 800–300 BCEὁμαλός2homalós‘even, level’
  4. Englishtodayhomaloidal2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek ὁμαλός
  2. 2 Wiktionary, English homaloidal

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*sem-Wiktionary, Ancient Greek ὁμαλός‘together, one’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*sem-h₂-lo-sWiktionary, Ancient Greek ὁμαλόςreconstructed
  3. Ancient Greekc. 800–300 BCEὁμαλόςWiktionary, English homaloidalhomalós‘even, level’
  4. EnglishtodayhomaloidalWiktionary, English homaloidal

Formed from oid

Linked words

through Proto-Indo-European *sem- ‘together, one’

some, same, single, similar, seem, simple, simply, soft, sam, simulation, sincerely, singular, resemble, assemble, resemblance, simultaneous, simulate, sincerity, semblance, assimilate, synapse, insincere, hyphen, homeopathic, simile, anomalous, homology, simulacrum, sempre, synchronise, homolog, 45 more

through Proto-Indo-European *sem-h₂-lo-s

anomaly, 3 more

Today it means

adj flat; even; applied to surfaces and spaces in which the Euclidean definitions, axioms, and postulates respecting parallel straight lines are assumed to hold true.

Sources

Sources: Wiktionary, “homaloidal”; the older steps come from the Wiktionary entry for Ancient Greek ὁμαλός. 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- / homaloidal