Where does “लद्दाख़” come from?

लद्दाख़ (Hindi) comes from Persian لداخ, from Tibetan ལ་དྭགས.

Ancestry of “लद्दाख़”, step by step

Step	Language	Word	Meaning
1	Persian	لداخ	—
2	Tibetan	ལ་དྭགས	—

लद्दाख़ — Etymology, Origin & Word History | Etymology Explorer