Corn
A small calloused area of skin caused by local pressure irritating tissue over a bony prominence.
Corns most commonly occur over a toe where they form what is referred to as a hard corn.
Between the toes, pressure can form a soft corn of macerated skin which often yellows.
The word corn comes from the Latin 'cornu' meaning horn or hoof.
A corn on the toe is also called a clavus.