shin
n.
Old English scinu "shin, fore part of the lower leg," from Proto-Germanic *skino "thin piece" (cognates: Dutch scheen, Old High German scina, German Schienbein "shin, shinbones"), from PIE root *skei- "to cut, split" (see shed, v.). Shin splints is attested from 1930.
v.
"to climb by using arms and legs" (originally a nautical word), 1829, from shin, n.. Related: Shinned; shinning.