Where does “xwastūg” come from?

xwastūg (Middle Persian) comes from Indonesian swa-, from Old Javanese swa, from Sanskrit स्व, from Old Saxon swas, from Proto-Germanic swēsaz, from Proto-Germanic swēsa- — own, relation.

Ancestry of “xwastūg”, step by step

Step	Language	Word	Meaning
1	Indonesian	swa-	self-, auto-
2	Old Javanese	swa	—
3	Sanskrit	स्व	—
4	Old Saxon	swas	—
5	Proto-Germanic	swēsaz	one's own, familiar, trusted
6	Proto-Germanic	swēsa-	own, relation

Words derived from “xwastūg”

խոստանամ
խոստումն
խոստանալ
խոստում

Every word from Proto-Germanic swēsa- →Every word from Indonesian swa- →Every word from Proto-Germanic swēsaz →