Where does “пудовка” come from?

пудовка (Russian) comes from Russian пуд, from Proto-Slavic pǫdъ, from Old Norse pund, from Proto-Germanic pundą, from Latin pondus, from Proto-Italic pondos, from Proto-Indo-European (s)pénd-os, from Proto-Indo-European (s)pend- — to stretch.

пудовка (Russian): a kind of measure, when for volume then equal to a четвери́к and when for weight then equal to a пуд

Definitions

a kind of measure, when for volume then equal to a четвери́к and when for weight then equal to a пуд

Ancestry of “пудовка”, step by step

Step	Language	Word	Meaning
1	Russian	пуд	pood; percent
2	Proto-Slavic	pǫdъ	under, below, beneath (stationary)
3	Old Norse	pund	—
4	Proto-Germanic	pundą	pound
5	Latin	pondus	weight; weight of a pound; heaviness, weight of a...
6	Proto-Italic	pondos	—
7	Proto-Indo-European	(s)pénd-os	—
8	Proto-Indo-European	(s)pend-	to stretch

Every word from Proto-Indo-European (s)pend- →Every word from Proto-Indo-European (s)pénd-os →Every word from Proto-Italic pondos →