Etymograph

English

reglementary

Reglementary comes from French réglementaire ‘regulatory’, from régler ‘to sort out, to settle’, and ultimately from Proto-Indo-European *h₃reǵ- ‘to straighten’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃reǵ-1‘to straighten’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₃réǵeti1‘to straighten’reconstructed
  3. Proto-Italicc. 1500–700 BCE*regō1reconstructed
  4. Latinc. 75 BCE–200 CEregō2‘to rule, govern’
  5. Latinc. 75 BCE–200 CErēgula3‘rule’
  6. Latinc. 75 BCE–200 CErēgulō4as rēgulāreuncertain
  7. Frenchc. 1600–presentrègle4uncertain
  8. Frenchc. 1600–presentrégler5‘to sort out, to settle’
  9. Frenchc. 1600–presentréglement6
  10. Frenchc. 1600–presentréglementaire6‘regulatory’
  11. Englishtodayreglementary6

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin rego, which cites Rix
  2. 2 Wiktionary, Latin regula
  3. 3 Wiktionary, Latin regulo
  4. 4 Wiktionary, French régler
  5. 5 Wiktionary, French règlement
  6. 6 Wiktionary, English reglementary

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₃reǵ-Wiktionary, Latin rego, which cites Rix‘to straighten’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₃réǵetiWiktionary, Latin rego, which cites Rix‘to straighten’reconstructed
  3. Proto-Italicc. 1500–700 BCE*regōWiktionary, Latin rego, which cites Rixreconstructed
  4. Latinc. 75 BCE–200 CEregōWiktionary, Latin regula‘to rule, govern’
  5. Latinc. 75 BCE–200 CErēgulaWiktionary, Latin regulo‘rule’
  6. Latinc. 75 BCE–200 CErēgulōWiktionary, French régleras rēgulāreuncertain
  7. Frenchc. 1600–presentrègleWiktionary, French régleruncertain
  8. Frenchc. 1600–presentréglerWiktionary, French règlement‘to sort out, to settle’
  9. Frenchc. 1600–presentréglementWiktionary, English reglementary
  10. Frenchc. 1600–presentréglementaireWiktionary, English reglementary‘regulatory’
  11. EnglishtodayreglementaryWiktionary, English reglementary

Linked words

through Proto-Indo-European *h₃reǵ- ‘to straighten’

right, real, rich, royal, correct, rank, roy, radar, rack, rogue, arrange, rex, raj, interrogation, rake, dresser, rector, regal, rani, regency, undress, dressage, rajah, rhesus, eldritch, riel, dirigible, rectilinear, derailleur, retch, interregnum, 73 more

through Proto-Indo-European *h₃réǵeti ‘to straighten’

ana, anorexia, 39 more

through Proto-Italic *regō

regional, resource, directory, regiment, regimen, erectile, erectus, erector, 34 more

through Latin regō ‘to rule, govern’

source, director, direction, address, direct, region, dress, realm, regime, ruler, resurrection, erect, insurrection, rectify, regent, rectum, droit, rectification, incorrigible, dirge, irregularity, recto, rectitude, rectus, derecho, corregidor, regio, 45 more

through Latin rēgula ‘rule’

rule, regular, regula, 6 more

through Latin rēgulō

regulate

Today it means

adj regulatory

Sources

Sources: Wiktionary, “reglementary”; the older steps come from the Wiktionary entries for Latin rego, Latin regula, Latin regulo, French régler, French règlement. 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 *h₃reǵ- / reglementary