Etymograph

English

arculus

Arculus comes from Latin arcus ‘bow, curve’, and goes back to Proto-Indo-European *h₂erkʷos.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂erkʷos1‘bow, arrow’reconstructed
  2. Proto-Italicc. 1500–700 BCE*arkuos1‘bow’reconstructed
  3. Latinc. 75 BCE–200 CEarcus2‘bow, curve’
  4. Englishearliest quotation 2015arculus2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin arcus
  2. 2 Wiktionary, English arculus
  3. Earliest quotation in Wiktionary’s entry: 2015, Christopher Hassall, Sean Brady: “Wing length (the length from the costal end of…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂erkʷosWiktionary, Latin arcus‘bow, arrow’reconstructed
  2. Proto-Italicc. 1500–700 BCE*arkuosWiktionary, Latin arcus‘bow’reconstructed
  3. Latinc. 75 BCE–200 CEarcusWiktionary, English arculus‘bow, curve’
  4. Englishearliest quotation 2015arculusWiktionary, English arculus. Earliest quotation in Wiktionary’s entry: 2015, Christopher Hassall, Sean Brady: “Wing length (the length from the costal end of…”

Linked words

through Proto-Indo-European *h₂erkʷos ‘bow, arrow’

archery, 7 more

through Proto-Italic *arkuos ‘bow’

archer, 8 more

through Latin arcus ‘bow, curve’

arc, arch, arcade, arson, arco, arcuate, 11 more

Today it means

noun A crossvein between the radius and cubitus near the base of the wing in certain insects

Sources

Sources: Wiktionary, “arculus”; the older steps come from the Wiktionary entry for Latin arcus. 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 *h₂erkʷos / arculus

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