Question

how did the Arabic language spread​

Answer 1

After the rise of Islam in the Hejaz, Arab culture and language were spread outside the Arabian Peninsula through conquest, trade and intermarriages between members of the non-Arab local population and the peninsular Arabs. The Arabic language began to serve as a lingua franca in these areas and dialects were formed.

Answer 2

$\huge\tt\red{❣\:Hello\:Mate}$

After the rise of Islam in the Hejaz, Arab culture and language were spread outside the Arabian Peninsula through conquest, trade and intermarriages between members of the non-Arab local population and the peninsular Arabs. The Arabic language began to serve as a lingua franca in these areas and dialects were formed.♡