sommelier vs subordinate

sommelier

verb
  • To act as a sommelier. 

noun
  • The member of staff at a restaurant who keeps the wine cellar and advises the guests on a choice of wines; a wine steward / stewardess, a wine waiter / waitress / server. 

subordinate

verb
  • To make subservient. 

  • To treat as of less value or importance. 

  • To make of lower priority in order of payment in bankruptcy. 

noun
  • One who is subordinate. 

adj
  • Descending in a regular series. 

  • Placed in a lower class, rank, or position. 

  • dependent on and either modifying or complementing the main clause 

  • Submissive or inferior to, or controlled by authority. 

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