Where does “Aquitania” come from?

Aquitania (Spanish) comes from Occitan Aquitània, from Latin Aquitania, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

Ancestry of “Aquitania”, step by step

Step	Language	Word	Meaning
1	Occitan	Aquitània	—
2	Latin	Aquitania	—
3	Latin	aqua	water
4	Proto-Italic	akʷā	water
5	Proto-Indo-European	h₂ekʷeh₂	water, flowing water

Every word from Proto-Indo-European h₂ekʷeh₂ →

Aquitania — Etymology, Origin & Word History | Etymology Explorer