Where does “علاء الدين” come from?

علاء الدين (Arabic) comes from Arabic دِين, from Pahlavi dēn, from Old Persian *dainah, from Proto-Indo-Iranian dʰayHanā-.

Ancestry of “علاء الدين”, step by step

علاء الدين traces back through two separate lines of ancestry.

via Arabic دِين

StepLanguageWordMeaning
1Arabicدِينjudgement; religion; faith
2Pahlavidēn—
3Old Persian*dainah—
4Proto-Indo-IraniandʰayHanā-—

via Arabic عَلَاء

StepLanguageWordMeaning
1Arabicعَلَاء—

Words derived from “علاء الدين”

Every word from Proto-Indo-Iranian dʰayHanā- →Every word from Old Persian *dainah →Every word from Pahlavi dēn →