Where does “布達拉宮” come from?

布達拉宮 (Chinese) comes from Tibetan པོ་ཏ་ལ, from Sanskrit पोतलक.

Ancestry of “布達拉宮”, step by step

Step	Language	Word	Meaning
1	Tibetan	པོ་ཏ་ལ	—
2	Sanskrit	पोतलक	—

布達拉宮 — Etymology, Origin & Word History | Etymology Explorer