Where does “[[povraz]], [[provaz]], [[provraz]]” come from?

[[povraz]], [[provaz]], [[provraz]] (Old Czech) comes from Proto-Slavic povorzъ, from Proto-Slavic po- — after.

Ancestry of “[[povraz]], [[provaz]], [[provraz]]”, step by step

Step	Language	Word	Meaning
1	Proto-Slavic	povorzъ	cord, rope
2	Proto-Slavic	po-	after