overlay
1. over.lay \.o--v*r-'la-\ vt 1a: to lay or spread over or across : SUPERIMPOSE 1b: to prepare an overlay for 2: OVERLIE 2. overlay \'o--v*r-.\ n : a covering either permanent or temporary : as : an ornamental veneer : paper patches added to the packing on a printing press to make a strong er impression : a decorative and contrasting design or article placed on top of a plain one : a transparent sheet containing graphic matter to be superimposed on ano ther sheet