v. t. [ imp. & p. p. Imprested; p. pr. & vb. n. Impresting. ] [ Pref. im- + prest: cf. It. imprestare. See Prest, n. ] To advance on loan. Burke. [ 1913 Webster ]

n. [ Cf. It. impresto, imprestito, LL. impraestitum. See Imprest, v. t., and Impress compulsion to serve. ] A kind of earnest money; loan; -- specifically, money advanced for some public service, as in enlistment. Burke. [ 1913 Webster ]

The clearing of their imprests for what little of their debts they have received. Pepys.

n. A sum of money to be used as petty cash. [ PJC ]