Arabian vs. Arabic

[Cristian1]

Hello, I am currently having a dilemma. An inhabitant of Arabia is called Arabian. The language an Arabian speaks in Arabia is Arabic. ...am I right? I believe I am mixing up the -ic and -an, and I do not know for sure which to which applies. Can you please help?

Many thanks,
Cris

[Kondorosi]

Arabian, Arabic or Arab
All three words serve as adjectives relating to the
Arabian Peninsula, where the first Muslim state was
established around AD 600, known now as Saudi
Arabia. Arabian is used in general references to the
culture and geography of the region, as in Arabian
Nights and Arabian deserts. Arabic mostly refers to
the language, scripts and symbols associated with
Arab peoples, and is applied to the languages of
countries such as Syria, Jordan, Irak, Egypt, Tunisia,
Algeria. Curiously, what we know as Arabic numerals
originated in India, and are known by the Arabs
themselves as “Indian numerals.” But Arab is now
the most frequent and widely used adjective, no doubt
because of the power and influence of Arabs outside
Arabia itself: hence the Arab
countries/leaders/nations of the Arab League.

Peter's CGEU

[Cristian1]

That was useful! More than what I actually needed. Thanks!