[kepler471]

Even within Europe there are many different words used for water, very cool! This is not a comprehensive list:

  Germanic - wasser/water/voda/woda
  French - eau
  Italian/Spanish - aqua/agua
  Greek - nero (νερό)
  Danish - vand
  Romanian - apă
  Latvian - udens
  Turkish - su
  Welsh - dwr

[vidarh]

The Danish belongs in the "Germanic" list; as does the Norwegian "vann" and "vatn" (the latter also Faroese, Icelandic, Norn), and Swedish "vatten".

The Romanian and French both comes from the latin aqua, just like the Italian/Spanish.

[kepler471]

Thanks for this!

Looking into it a bit more, the French is also from the latin source (aqua) - https://en.wiktionary.org/wiki/eau

[cafard]

The Welsh suggests the Ancient Greek "hudor".

[richardfontana]

That resemblance is coincidental: hudor derives from Proto-Indo-European *wed- (as does English water, wet, winter) while dwr derives from Proto-Indo-European *dʰewb- "deep" (as does English dip, deep) https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-Eur... https://www.etymonline.com/word/*wed-

[TRiG_Ireland]

The Irish uisce is the source for the English word whiskey.

[mcswell]

Adding Basque to your list, the word is ur. (I don't know Basque, just looked it up.)

[uoaei]

It is strange to see Slavic lumped in with Germanic. Is this common practice?

[jagrsw]

Both come from PIE "wódr" for water. Romance languages descended ftom a synonym "ekeh" which resulted in aqua/agua/eau/... and the word itself meant "a body of water" like a lake or a river iirc.

[kepler471]

I only meant this as "similar to the Germanic", I don't know enough to give this category a proper name