underlay vs veil

underlay

noun
  • A piece of paper pasted under woodcuts, stereotype plates, etc. in a form, to bring them up to the necessary level for printing. 

  • Lyrics; or more specifically, the way in which lyrics are assigned to musical notes. 

  • Anything that is underlaid. 

  • A layer (of earth, etc.) that lies under another; substratum. 

  • A soft floor covering that lies under a carpet. 

verb
  • To lay (something) underneath something else; to put under. 

  • To put a tap on (a shoe). 

  • simple past tense of underlie 

  • To provide a support for something; to raise or support by something laid under. 

  • To incline from the vertical. 

veil

noun
  • A thin layer of tissue which is attached to or covers a mushroom. 

  • A cover; disguise; a mask; a pretense. 

  • A membrane connecting the margin of the pileus of a mushroom with the stalk; a velum. 

  • Anything that partially obscures a clear view. 

  • A covering for a person or thing; as, a caul (especially over the head) 

  • The calyptra of mosses. 

  • That which separates the living and the spirit world. 

  • An obscuration of the clearness of the tones in pronunciation. 

  • velum (A circular membrane round the cap of a medusa). 

  • Something hung up or spread out to hide or protect the face, or hide an object from view; usually of gauze, crepe, or similar diaphanous material. 

verb
  • To dress in, or decorate with, a veil. 

  • To conceal as with a veil. 

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