Mantle \Man"tle\, v. t. [imp. & p. p. {Mantled}; p. pr. & vb. n. {Mantling}.] To cover or envelop, as with a mantle; to cloak; to hide; to disguise. --Shak. Mantling \Man"tling\, n. (Her.) The representation of a mantle, or the drapery behind and around a coat of arms: -- called also {lambrequin}.