Where does “Аллахвердиев” come from?

Аллахвердиев (Russian) comes from Azerbaijani Allahverdi, from Azerbaijani Allah, from Arabic اَللّٰه, from Proto-Semitic ʾil- — deity; god.

Ancestry of “Аллахвердиев”, step by step

StepLanguageWordMeaning
1AzerbaijaniAllahverdi
2AzerbaijaniAllahAllah, God
3ArabicاَللّٰهAllah; God
4Proto-Semiticʾil-deity; god
Every word from Proto-Semitic ʾil-Every word from Arabic اَللّٰهEvery word from Azerbaijani Allah