marrowbone

noun

1. A bone containing edible marrow.

   “And thy skull and thy marrow-bones will I have away to Carcë, to my palace, to be a token unto all the world that I have been the bane of an hundredth great champion by my wrastling, and thou not least among them that I have slain in that exercise.”

2. (humorous, in-plural)The shins or knees, chiefly in references to kneeling.

   “Upon this condescension, the culprit was called up stairs^([sic]), and made acquainted with the mitigation of his fate; upon which he said, he would down on his marrow-bones to his own master, but would be damn'd before he would ask pardon of e'er a Frenchman in Christendom.”

   “So the news of the split between the old and the young one caused plenty of conversation, you may be sure; and will Mr. Robert go down on his marrowbones? and what has he done? was all the question.”

   “They would all to a man have gone down on their marrowbones to him.”