Arian

[air-ee-uh n, ar-] /ˈɛər i ən, ˈær-/
adjective
1.
of or pertaining to Arius or Arianism.
noun
2.
an adherent of Arianism.
Origin
1525-35; < Late Latin Ariānus of, pertaining to Arius; see -an

Arian

[air-ee-uh n, ar-] /ˈɛər i ən, ˈær-/
adjective, noun
1.
Aryan.

-arian

1.
a suffix forming personal nouns corresponding to Latin adjectives ending in -ārius or English adjectives or nouns ending in -ary, (librarian; proletarian; Rotarian; seminarian; sexagenarian; veterinarian); subsequently productive in English with other Latinate stems, forming nouns denoting a person who supports, advocates, or practices a doctrine, theory, or set of principles associated with the base word: authoritarian; establishmentarian; totalitarian; vegetarian .
Origin
< Latin -āri(us) or -ary + -an
British Dictionary definitions for Arian

Arian

/ˈɛərɪən/
adjective
1.
of, relating to, or characterizing Arius or Arianism
noun
2.
an adherent of Arianism
adjective, noun
3.
a variant spelling of Aryan

Aryan

/ˈɛərɪən/
noun
1.
(in Nazi ideology) a Caucasian of non-Jewish descent, esp of the Nordic type
2.
a member of any of the peoples supposedly descended from the Indo-Europeans, esp a speaker of an Iranian or Indic language in ancient times
adjective
3.
of, relating to, or characteristic of an Aryan or Aryans
adjective, noun
4.
(archaic) Indo-European
Word Origin
C19: from Sanskrit ārya of noble birth

-arian

suffix
1.
indicating a person or thing that advocates, believes, or is associated with something: vegetarian, millenarian, librarian
Word Origin
from Latin -ārius-ary + -an
Word Origin and History for Arian
adj.

1530s, pertaining to the doctrines of Arius, priest in Alexandria early 4c., who posed the question of Christ's nature in terms which appeared to debase the Savior's relation to God (denial of consubstantiation). Besides taking an abstract view of Christ's nature, he reaffirmed man's capacity for perfection. The dissention was widespread and split the Church for about a century during a crucial time.