Crust \Crust\, v. t. [imp. & p. p. {Crusted}; p. pr. & vb. n. {Crusting}.] [Cf. OF. crouster, L. crustare. See {Crust}, n. ] To cover with a crust; to cover or line with an incrustation; to incrust. The whole body is crusted over with ice. --Boyle. And now their legs, and breast, and bodies stood Crusted with bark. --Addison. Very foul and crusted bottles. --Swift. Their minds are crusted over, like diamonds in the rock. --Felton.