from
The Collaborative International Dictionary of English v.0.48
Double \Dou"ble\, v. i.
1. To be increased to twice the sum, number, quantity,
length, or value; to increase or grow to twice as much.
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'T is observed in particular nations, that within
the space of three hundred years, notwithstanding
all casualties, the number of men doubles. --T.
Burnet.
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2. To return upon one's track; to turn and go back over the
same ground, or in an opposite direction.
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Doubling and turning like a hunted hare. --Dryden.
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Doubling and doubling with laborious walk.
--Wordsworth.
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3. To play tricks; to use sleights; to play false.
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What penalty and danger you accrue,
If you be found to double. --J. Webster.
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4. (Print.) To set up a word or words a second time by
mistake; to make a doublet.
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{To double upon} (Mil.), to inclose between two fires.
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