(1)  To raise in value.

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1779.  Any probable attempt to raise or appreciate the value of the money.—P. Webster, ‘Pol. Essays,’ 33. (N.E.D.)

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(2)  To rise in value.

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1789–96.  There was a great demand for specie and bills, which occasioned the latter at various times to appreciate.—Morse, ‘American Geography,’ i. 323. (N.E.D.)

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