Where does “पाकिस्तान” come from?

पाकिस्तान (Marathi) comes from Urdu پاکستان, from Classical Persian پَاک.

Ancestry of “पाकिस्तान”, step by step

StepLanguageWordMeaning
1UrduپاکستانLand of the Pure
2Classical Persianپَاک—
Every word from Classical Persian پَاک →Every word from Urdu پاکستان →
पाकिस्तान — Etymology, Origin & Word History | Etymology Explorer