Where does “加德滿都” come from?

加德滿都 (Chinese) comes from English Kathmandu, from Nepali काठमाडौं, from Sanskrit काष्ठमण्डप, from Sanskrit मण्डप, from Sanskrit प, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “加德滿都”, step by step

Step	Language	Word	Meaning
1	English	Kathmandu	—
2	Nepali	काठमाडौं	Kathmandu
3	Sanskrit	काष्ठमण्डप	—
4	Sanskrit	मण्डप	pavilion, temple
5	Sanskrit	प	protecting; drinking
6	Proto-Indo-European	per-	before, in front; first; to go through
7	Proto-Indo-European	pr̥tós	passed , crossed

Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Sanskrit प →