Where does “آیَتُ‌اللّٰه” come from?

آیَتُ‌اللّٰه (Iranian Persian) comes from Classical Persian آیَةُاللّٰه, from Arabic آيَةُ ٱللَّٰهِ, from Arabic اللّٰه, from Proto-Semitic ʾil- — deity; god.

Ancestry of “آیَتُ‌اللّٰه”, step by step

Step	Language	Word	Meaning
1	Classical Persian	آیَةُاللّٰه	—
2	Arabic	آيَةُ ٱللَّٰهِ	—
3	Arabic	اللّٰه	God, Allah; the All-highest”, “God; the...
4	Proto-Semitic	ʾil-	deity; god

Every word from Proto-Semitic ʾil- →