dominate vs keep under

dominate

verb
  • To exert an overwhelming guiding influence over something or someone 

  • To enjoy a commanding position in some field 

  • To overlook from a height. 

  • To precede another node of a directed graph in all paths from the start of the graph to the other node. 

  • To govern, rule or control by superior authority or power 

adj
  • Dominant. 

noun
  • The late period of the Roman Empire, following the principate, during which the emperor's rule became more explicitly autocratic and remaining vestiges of the Roman Republic were removed from the formal workings of government; the reign of any particular emperor during this period. 

keep under

verb
  • To hold in subjection; hence, to oppress. 

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