Arab" refers to the people group, and currently is used as an adjective to describe
anything being "of, or related to, an Arab or Arabs"
.
Arabic is simply the name given to the language spoken by the Arabs.
A custom is something we do out of habit as individuals.
A tradition is something that is handed down from generation to generation. Having turkey on thanksgiving is a custom. Celebrating our heritage is a tradition.
Traditions are those processes that are given to new generations by old generations.It (tradition)exists for a long time,while customs are very short processes that are made & finished.