dissertation vs syllabus

dissertation

noun
  • A formal exposition of a subject, especially a research paper that students write in order to complete the requirements for a doctoral degree in the US and a non-doctoral degree in the UK; a thesis. 

  • A lengthy lecture on a subject; a treatise; a discourse; a sermon. 

syllabus

noun
  • A summary of topics which will be covered during an academic course, or a text or lecture. 

  • The headnote of a reported case; the brief statement of the points of law determined prefixed to a reported case. 

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