caudal vs pillar

caudal

noun
  • A caudal vertebra. 

adj
  • Toward the tail end (hind end) of the body; in bipeds such as humans, this direction corresponds to inferior. 

  • Pertaining to the tail or posterior or hind part of a body. 

pillar

noun
  • The body from the hips over the core to the shoulders. 

  • A portable ornamental column, formerly carried before a cardinal, as emblematic of his support to the church. 

  • A large post, often used as supporting architecture. 

  • The centre of the volta, ring, or manege ground, around which a horse turns. 

  • An essential part of something that provides support. 

  • Something resembling such a structure. 

verb
  • To provide with pillars or added strength as if from pillars. 

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