overlay

Noun

• a layer of decorative material (such as gold leaf or wood veneer) applied over a surface

• protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior

Verb

• kill by lying on
  • The sow overlay her piglets
    

• put something on top of something else
  • cover the meat with a lot of gravy
    

Related words

• Synonyms: 
  sheathing , overlayer , overlie , cover