Also, as a noun, a bone in the carpus of mammals, which in humans means the wrist (in the second row on the little-finger end), so-called because it is -- ta-da! -- hooked at the end. The word was borrowed around 1740 from Latin hāmātus, from hāmus, hook + adjectival ending. It's not clear, but it seems to have been borrowed for the bone and then used in more literal senses afterward.
Do not confuse the hamate bone and the unciform bone, which is another name for the same thing.