Sit FastSit Fast
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\Sit"fast`\, a. [Sit + fast.] 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.) A callosity with inflamed edges, on the back of a horse, under the saddle.