Where does “ट्रॉय” come from?

ट्रॉय (Hindi) comes from English troy, from Latin Trōia, from Ancient Greek Τροία — Troy.

Ancestry of “ट्रॉय”, step by step

Step	Language	Word	Meaning
1	English	troy	Of, or relating to, troy weight
2	Latin	Trōia	—
3	Ancient Greek	Τροία	Troy

ट्रॉय — Etymology, Origin & Word History | Etymology Explorer