Where does “пресноводный” come from?

пресноводный (Russian) comes from Russian вода́, from Old East Slavic вода, from Proto-Slavic vodà, from Proto-Balto-Slavic wandō, from Proto-Indo-European wódr̥, from Proto-Indo-European wed-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

пресноводный (Russian): freshwater

Definitions

  1. freshwater

Ancestry of “пресноводный”, step by step

пресноводный traces back through two separate lines of ancestry.

via Russian вода́

StepLanguageWordMeaning
1Russianвода́water
2Old East Slavicводаwater
3Proto-Slavicvodàwater
4Proto-Balto-Slavicwandōwater
5Proto-Indo-Europeanwódr̥water
6Proto-Indo-Europeanwed-water
7Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via Russian пре́сный

StepLanguageWordMeaning
1Russianпре́сныйsweet, fresh, unleavened, tasteless
Every word from Proto-Indo-European wey-Every word from Proto-Indo-European wed-Every word from Proto-Indo-European wódr̥