Where does “knewlen” come from?

knewlen (Middle English) comes from Old English cnēowlian, from Old English cnēow, from Proto-West Germanic kneu, from Proto-Germanic knewą, from Proto-Indo-European ǵnéwo-, from Proto-Indo-European ǵónu — knee.

Ancestry of “knewlen”, step by step

StepLanguageWordMeaning
1Old Englishcnēowlianto kneel
2Old Englishcnēowknee
3Proto-West Germanickneuknee
4Proto-Germanicknewąknee
5Proto-Indo-Europeanǵnéwo-knee
6Proto-Indo-Europeanǵónuknee
Every word from Proto-Indo-European ǵónu →Every word from Proto-Indo-European ǵnéwo- →Every word from Proto-Germanic knewą →