mantle vs scutum

mantle

noun
  • A mantling. 

  • A figurative garment representing authority or status, capable of affording protection. 

  • The layer between the Earth's core and crust. 

  • A penstock for a water wheel. 

  • A gauzy fabric impregnated with metal nitrates, used in some kinds of gas and oil lamps and lanterns, which forms a rigid but fragile mesh of metal oxides when heated during initial use and then produces white light from the heat of the flame below it. (So called because it is hung above the lamp's flame like a mantel.) 

  • The back of a bird together with the folded wings. 

  • The zone of hot gases around a flame. 

  • The cerebral cortex. 

  • The outer wall and casing of a blast furnace, above the hearth. 

  • Anything that covers or conceals something else; a cloak. 

  • A piece of clothing somewhat like an open robe or cloak, especially that worn by Orthodox bishops. (Compare mantum.) 

  • The body wall of a mollusc, from which the shell is secreted. 

  • A fireplace shelf; Alternative spelling of mantel 

verb
  • To climb over or onto something. 

  • To become covered or concealed. 

  • To spread like a mantle (especially of blood in the face and cheeks when a person flushes). 

  • To cover or conceal (something); to cloak; to disguise. 

scutum

noun
  • A scute. 

  • The kneecap. 

  • One of the two lower valves of the operculum of a barnacle. 

  • An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavily armed infantry of the Roman army. 

  • A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum) 

How often have the words mantle and scutum occurred in a corpus of books? (source: Google Ngram Viewer )