Where does “potable” come from?

potable (Tagalog) comes from Spanish potable, from Latin pōtābilis, from Latin pōtō, from Latin pōtus, from Latin pōtāre, from Proto-Italic pōtos, from Proto-Indo-European ph₃tós, from Proto-Indo-European peh₃- — to drink.

potable (Tagalog): potable; drinkable

Definitions

potable; drinkable

Ancestry of “potable”, step by step

Step	Language	Word	Meaning
1	Spanish	potable	potable, drinkable
2	Latin	pōtābilis	drinkable, potable
3	Latin	pōtō	to drink
4	Latin	pōtus	drunk
5	Latin	pōtāre	—
6	Proto-Italic	pōtos	drunk
7	Proto-Indo-European	ph₃tós	drunk; having drunk
8	Proto-Indo-European	peh₃-	to drink

Every word from Proto-Indo-European peh₃- →Every word from Proto-Indo-European ph₃tós →Every word from Proto-Italic pōtos →