limit vs sit on

limit

verb
  • To restrict; not to allow to go beyond a certain bound, to set boundaries. 

  • To have a limit in a particular set. 

adj
  • Being a fixed limit game. 

noun
  • A restriction; a bound beyond which one may not go. 

  • The cone of a diagram through which any other cone of that same diagram can factor uniquely. 

  • A determining feature; a distinguishing characteristic. 

  • Fixed limit. 

  • The final, utmost, or furthest point; the border or edge. 

  • The first group of riders to depart in a handicap race. 

  • A person who is exasperating, intolerable, astounding, etc. 

  • A value to which a sequence converges. Equivalently, the common value of the upper limit and the lower limit of a sequence: if the upper and lower limits are different, then the sequence has no limit (i.e., does not converge). 

  • Any of several abstractions of this concept of limit. 

sit on

verb
  • To block, suppress, restrain. 

  • To take no action on; to hold in reserve without actually using. 

  • To hold an official inquiry regarding; to deliberate about. 

  • To be a member of. 

  • Used other than figuratively or idiomatically: see sit, on. 

  • To restrain (a person). 

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