'Arian' (the theological sense) ultimately comes from the name 'Arius' (Greek 'Ἄριος'), passed into Late Latin as 'Arianus', meaning 'of or relating to Arius'; the zodiac sense (relating to Aries) is modeled on Latin 'aries'/'ariēns' meaning 'ram' or 'of Aries'. Japanese: 「Arian」（神学的用法）はギリシャ語の人名「『Arius』」に由来し、ラテン語の「『Arianus』」を経て「Arian」となった。黄道帯の意味はラテン語の「『aries』『ariēns』」（羊）に基づく。

'Arian' (from the theological line) passed from Greek 'Arius' into Late Latin as 'Arianus' and into Medieval and Modern English as 'Arian'; the zodiac-related adjective formed in English by analogy with Latin-derived forms referring to signs of the zodiac (from 'aries'/'ariēns'). Japanese: 神学的系譜では、ギリシャ語の「『Arius』」が後期ラテン語の「『Arianus』」を経て中英語・近代英語の「Arian」へと変化した。黄道帯由来の形はラテン語の「『aries』『ariēns』」に類推して英語化された。

Initially the primary meaning was 'of or pertaining to Arius' and to the Christian doctrine associated with him; over time it also came to be used simply for a follower of that doctrine and, separately by analogy, to indicate someone relating to or born under the sign of Aries; additionally it functions as a personal name in several languages. Japanese: 当初は『アリウスに関する』、または彼の教義に関する意味が主要だったが、次第にその教義の信奉者を示す語として用いられるようになり、類推により牡羊座に関連する意味や、人名としての用法も生じた。