Where does “Миср” come from?

Миср (Tajik) comes from Classical Persian مِصْر, from Arabic مِصْر — Egypt.

Ancestry of “Миср”, step by step

StepLanguageWordMeaning
1Classical Persianمِصْر—
2ArabicمِصْرEgypt
Every word from Arabic مِصْر →Every word from Classical Persian مِصْر →