0 past simple and past participle of knee
1 to hit someone with your knee:
She kneed him in the groin.
Collins et al.1 built the first three-dimensional, two-legged and kneed passive-dynamic walking machine.
It is an accepted fact that the baking industry is one in which many men's faces look like the dough which they kneed.
Some of them are robust—retired army officers and their wives—and they are not habitually weak kneed in the face of a real threat.
This is one of the weak kneed demoralising attitudes tnat is about.