That resemblance is coincidental: hudor derives from Proto-Indo-European *wed- (as does English water, wet, winter) while dwr derives from Proto-Indo-European

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-European/d%CA%B0ub%CA%B0r%C3%B3s https://en.wiktionary.org/wiki/Reconstruction:Proto-Indo-Eur... https://www.etymonline.com/word/*wed- https://www.etymonline.com/word/*wed-