hiding vs niqab

hiding

noun
  • Skinning (of an animal) to yield a hide (for human use). 

  • A state of concealment. 

  • A place of concealment. 

  • A beating or spanking. 

niqab

noun
  • A veil which covers the face, worn by some Muslim women as a part of sartorial hijab. 

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