sitfast
n. சேணக்கரடு, குதிரைமுதுகில் சேண உராய்வழுத்தத்தால் ஏற்படும் காழ்ப்புக்கட்டி.
Sit"fast`, a. Etym: [Sit + fast.] Defn: Fixed; stationary; immovable. [R.] 'T is good, when you have crossed the sea and back, To find the sitfast acres where you left them. Emerson. Sit"fast`, n. (Far.) Defn: A callosity with inflamed edges, on the back of a horse, under the saddle.