garget

noun

1. (archaic)An inflammation on a cow's or sheep's udder; synonym of mastitis.

   “Chronic indurations will sometimes remain after the inflammation of garget has been subdued; they will be somewhat tender, and they will always lessen the quantity of milk.”

   “Mastitis is a disease of the udder. More specifically, mastitis is an inflammation of the udder usually caused by germs which enter through the teat canal. Many dairymen and farmers refer to the disease by the terms garget, caked udder, and a variety of other names. All, however, are one and the same disease.”

   “[speaking of Suffolk in the era circa World War I] As well as these special journeys we could go for regular inspections of the cattle—because there were troubles. Some of them would be heifers or dry cows, and they would get what I suppose we'd call mastitis today but then we called it gargut [spelling as given].”

2. A distemper in pigs accompanied by staggering and loss of appetite.
3. Pokeweed.