conception vs emergence

conception

noun
  • The power or faculty of apprehending of forming an idea in the mind; the power of recalling a past sensation or perception; the ability to form mental abstractions. 

  • An image, idea, or notion formed in the mind; a concept, plan or design. 

  • The act of conceiving. 

  • The fertilization of an ovum by a sperm to form a zygote. 

  • The state of being conceived; the beginning. 

  • The start of pregnancy. 

  • The formation of a conceptus or an implanted embryo. 

emergence

noun
  • The act of rising out of a fluid, or coming forth from envelopment or concealment, or of rising into view; sudden uprising or appearance. 

  • In particular: the arising of emergent structure in complex systems. 

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