Etymology

unitarian

U1N1I1T1A1R1I1A1N1

Today it means: A follower of Unitarian Universalism or a similar non-creedal (non-dogmatic) religion (either Christian or non-Christian) that originated historically from Christian Unitarianism. Full definition →

English unitary
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unitarian · adjective, noun1

  1. Englishunit
  2. Englishunitary
  3. English todayunitarian

From unitary + -ian.

Unitarian · noun, adjective2

  1. Proto-Indo-European*ís?
  2. Proto-Indo-European*h₁óynos
  3. Proto-Italic*oinos
  4. Old Latinoinos
  5. Latinūnus
  6. Latinūnitās
  7. Latinūnitārius
  8. English todayUnitarian

From New Latin ūnitārius + -an. First documented as unitaria religio, in a decree of the Diet of Lécfalva (1600). In English since 1687 By surface analysis, unitary + -ian.

Etymology from Wiktionary, CC BY-SA 4.0.