Where does “potel” come from?

potel (Welsh) comes from Middle English botel, from Old French boteille, from Latin butticula, from Latin buttis, from Ancient Greek πυτίνη, from Proto-Indo-European bʰeHw- — to swell, puff.

potel (Welsh): bottle

Definitions

bottle

Ancestry of “potel”, step by step

Step	Language	Word	Meaning
1	Middle English	botel	bottle, flask, wineskin
2	Old French	boteille	bottle
3	Latin	butticula	bottle
4	Latin	buttis	cask, barrel
5	Ancient Greek	πυτίνη	a flagon, flask
6	Proto-Indo-European	bʰeHw-	to swell, puff

Every word from Proto-Indo-European bʰeHw- →Every word from Ancient Greek πυτίνη →Every word from Latin buttis →