Where does “علاءالدین” come from?

علاءالدین (Persian) comes from Arabic عَلَاء الدِّين — nobility of the faith.

Ancestry of “علاءالدین”, step by step

Step	Language	Word	Meaning
1	Arabic	عَلَاء الدِّين	nobility of the faith

علاءالدین — Etymology, Origin & Word History | Etymology Explorer