Where does “kneestone” come from?

kneestone (English) comes from English knee, from Middle English knē, from Old English cnēo, from Proto-West Germanic kneu, from Proto-Germanic knewą, from Proto-Indo-European ǵnéwo-, from Proto-Indo-European ǵónu — knee.

Ancestry of “kneestone”, step by step

kneestone traces back through two separate lines of ancestry.

via English knee

StepLanguageWordMeaning
1EnglishkneeIn humans, the joint or the region of the joint...
2Middle EnglishknēThe knee or a similar joint in other animals
3Old Englishcnēogeneration
4Proto-West Germanickneuknee
5Proto-Germanicknewąknee
6Proto-Indo-Europeanǵnéwo-knee
7Proto-Indo-Europeanǵónuknee

via English Stone

StepLanguageWordMeaning
1EnglishStonefor someone who lived near a stone worked with stone, from
2Middle EnglishstonAlternative form of stone
3Old Englishstānstone, rock
4Old NorseVeggrname of a dwarf
5Proto-Germanicwajjuzwall
6Proto-Indo-Europeanwh̥₁yús
7Proto-Indo-Europeanweh₁y-to twist, wind, weave, plait; to wrap, enclose,...
Every word from Proto-Indo-European ǵónuEvery word from Proto-Indo-European ǵnéwo-Every word from Proto-Germanic knewą
kneestone — Etymology, Origin & Word History | Etymology Explorer