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