The language of the original Aryans.

(theosophy, Germanic mysticism, Nazism) A member of an alleged master race with no fixed definition, comprising people of Germanic descent (in the narrowest sense), or all non-Jewish Caucasians (in the broadest sense)

(Nazism or white supremacy, informal) A person of Caucasian (white / European) ethnicity; a white non-Jew.

(chiefly US, informal, euphemistic) A Caucasian racist, often one who is an Aryan in the first sense.

Pertaining, in racial theories, to the (alleged) Aryan master race.

(neo-Nazi or white supremacist ideology, informal) Pertaining to the Caucasian ethnicity.

(US, informal, euphemistic) Pertaining to Caucasian racists or their organisations, theories, etc.

Of or pertaining to Indo-Iranian peoples, cultures, and languages.