Crave
v. t.- To ask with earnestness or importunity; to ask with submission or humility; to beg; to entreat; to beseech; to implore.
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To call for, as a gratification; to long for; hence, to require or demand;
as, the stomach .craves food
v. i.
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To desire strongly; to feel an insatiable longing;
as, a .craving appetite