common vs commonplace

common

adj
  • Simple, ordinary or vulgar. 

  • Mutual; shared by more than one. 

  • Found in large numbers or in a large quantity; usual. 

  • Of or pertaining to common nouns as opposed to proper nouns. 

  • Of, pertaining or belonging to the common gender. 

  • Vernacular, referring to the name of a kind of plant or animal, i.e., common name vs. scientific name. 

  • Occurring or happening regularly or frequently; usual. 

noun
  • The right of taking a profit in the land of another, in common either with the owner or with other persons; so called from the community of interest which arises between the claimant of the right and the owner of the soil, or between the claimants and other commoners entitled to the same right. 

  • A tract of land in common ownership; common land. 

  • Mutual good, shared by more than one. 

  • The people; the community. 

commonplace

adj
  • Ordinary; not having any remarkable characteristics. 

verb
  • To make a commonplace book. 

  • To enter in a commonplace book, or to reduce to general heads. 

noun
  • A platitude or cliché. 

  • A commonplace book. 

  • Something that is ordinary; something commonly done or occurring. 

  • A memorandum; something to be frequently consulted or referred to. 

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