Etymograph

English

r.

R. comes from Latin r., from regō ‘to rule, govern, direct’, 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’reconstructedderived within Proto-Indo-European
  3. Proto-Italicc. 1500–700 BCE*regō1reconstructed
  4. Latinc. 75 BCE–200 CEregō2as rexit‘to rule, govern, direct’
  5. Latinc. 75 BCE–200 CEr.2
  6. Englishtodayr.2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin rego, which cites Rix
  2. 2 Wiktionary, English r.

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’reconstructedderived within Proto-Indo-European
  3. Proto-Italicc. 1500–700 BCE*regōWiktionary, Latin rego, which cites Rixreconstructed
  4. Latinc. 75 BCE–200 CEregōWiktionary, English r.as rexit‘to rule, govern, direct’
  5. Latinc. 75 BCE–200 CEr.Wiktionary, English r.
  6. Englishtodayr.Wiktionary, English r.

The story

Now often parsed as an abbreviation of English ruled or reigned.

Full etymology on Wiktionary

Linked words

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

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

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

ana, anorexia, 40 more

through Proto-Italic *regō

regional, resource, directory, regiment, ruler, regimen, erectile, erectus, erector, 35 more

through Latin regō ‘to rule, govern, direct’

director, source, region, rule, direction, address, direct, dress, regime, realm, regulate, resurrection, erect, regent, insurrection, rectify, rectum, irregularity, rectification, incorrigible, droit, dirge, recto, regula, rectus, rectitude, derecho, regio, corregidor, 47 more

Today it means

verb Synonym of ruled or reigned, used in historical dating to distinguish regnal years from births and deaths.

Sources

Sources: Wiktionary, “r.”; the older steps come from the Wiktionary entry for Latin rego. 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- / r.

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