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The Collaborative International Dictionary of English v.0.48 (gcide)

Lag \Lag\, v. i. [imp. & p. p. {Lagged}; p. pr. & vb. n.
{Lagging}.]
To walk or more slowly; to stay or fall behind; to linger or
loiter. "I shall not lag behind." --Milton.

Syn: To loiter; linger; saunter; delay; be tardy.
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Lag \Lag\, v. t.
1. To cause to lag; to slacken. [Obs.] "To lag his flight."
--Heywood.
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2. (Mach.) To cover, as the cylinder of a steam engine, with
lags. See {Lag}, n., 4.
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Lag \Lag\, n.
1. One who lags; that which comes in last. [Obs.] "The lag of
all the flock." --Pope.
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2. The fag-end; the rump; hence, the lowest class.
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The common lag of people. --Shak.
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3. The amount of retardation of anything, as of a valve in a
steam engine, in opening or closing.
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4. A stave of a cask, drum, etc.; especially: (Mach.), one of
the narrow boards or staves forming the covering of a
cylindrical object, as a boiler, or the cylinder of a
carding machine or a steam engine.
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5. (Zool.) See {Graylag}.
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6. The failing behind or retardation of one phenomenon with
respect to another to which it is closely related; as, the
lag of magnetization compared with the magnetizing force
(hysteresis); the lag of the current in an alternating
circuit behind the impressed electro-motive force which
produced it.
[Webster 1913 Suppl.]

{Lag of the tide}, the interval by which the time of high
water falls behind the mean time, in the first and third
quarters of the moon; -- opposed to {priming} of the tide,
or the acceleration of the time of high water, in the
second and fourth quarters; depending on the relative
positions of the sun and moon.

{Lag screw}, an iron bolt with a square head, a sharp-edged
thread, and a sharp point, adapted for screwing into wood;
a screw for fastening lags.
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Lag \Lag\, a. [Of Celtic origin: cf. Gael. & Ir. lagweak,
feeble, faint, W. llag, llac, slack, loose, remiss, sluggish;
prob. akin to E. lax, languid.]
1. Coming tardily after or behind; slow; tardy. [Obs.]
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Came too lag to see him buried. --Shak.
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2. Last; long-delayed; -- obsolete, except in the phrase lag
end. "The lag end of my life." --Shak.
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3. Last made; hence, made of refuse; inferior. [Obs.] "Lag
souls." --Dryden.
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Lag \Lag\, n.
One transported for a crime. [Slang, Eng.]
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Lag \Lag\, v. t.
To transport for crime. [Slang, Eng.]
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She lags us if we poach. --De Quincey.
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