The Collaborative International Dictionary of English v.0.48:

Fast \Fast\, adv. [OE. faste firmly, strongly, quickly, AS.
   f[ae]ste. See Fast, a.]
   1. In a fast, fixed, or firmly established manner; fixedly;
      firmly; immovably.
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            We will bind thee fast.               --Judg. xv.
                                                  13.
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   2. In a fast or rapid manner; quickly; swiftly;
      extravagantly; wildly; as, to run fast; to live fast.
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   Fast by, or Fast beside, close or near to; near at hand.
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            He, after Eve seduced, unminded slunk
            Into the wood fast by.                --Milton.
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            Fast by the throne obsequious Fame resides. --Pope.
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