Where does “punnau” come from?

punnau (Welsh) comes from Welsh punt, from Middle Welsh punt, from Old English pund, from Proto-Germanic *pund, from Proto-Germanic pundą, from Latin pondus, from Proto-Italic pondos, from Proto-Indo-European (s)pénd-os — to stretch.

Ancestry of “punnau”, step by step

StepLanguageWordMeaning
1Welshpuntpound
2Middle Welshpunt—
3Old Englishpundpound
4Proto-Germanic*pund—
5Proto-Germanicpundąpound
6Latinpondusweight; weight of a pound; heaviness, weight of a...
7Proto-Italicpondos—
8Proto-Indo-European(s)pénd-os—
9Proto-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 →