warp and woof vs weft

warp and woof

noun
  • The threads in a woven fabric, composed of the warp (threads running lengthwise) and woof (threads running crosswise) to create the texture of the fabric. 

  • The fundamental structure of any process or system. 

weft

noun
  • The horizontal threads that are interlaced through the warp in a woven fabric. 

  • The yarn used for the weft; the fill. 

  • A hair extension that is glued directly to a person′s natural hair. 

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