The story
- Proto-Indo-European*gʰrem-
- Proto-Germanic*grunduz
- Proto-West Germanic*grundu
- Old Englishgrund
- Middle Englishground
- Englishground
- Proto-Indo-European*wed-
- Proto-Indo-European*wódr̥
- Proto-Germanic*watōr
- Proto-West Germanic*watar
- Old Englishwæter
- Middle Englishwater
- Englishwater
- English todaygroundwater
Etymology from Wiktionary, CC BY-SA 4.0.