quit·tor 
(kwĭtər)
(kwĭtər)n.
An inflammation of the hoof cartilage of horses and other solid-hoofed animals, characterized by degeneration of hoof tissue, formation of a slough, and fistulous sores.
[Middle English quiture, perhaps from Old French, act of boiling, from Latin coctūra, boiling liquid, from coctus, past participle of coquere, to cook; see pekw- in the Appendix of Indo-European roots.]