Where does “Ҷалолобод” come from?

Ҷалолобод (Tajik) comes from Tajik -обод, from Classical Persian آباد.

Ancestry of “Ҷалолобод”, step by step

Step	Language	Word	Meaning
1	Tajik	-обод	forms names of towns and populated or inhabited areas
2	Classical Persian	آباد	—