carp vs nay-say

carp

verb
  • To complain about a fault; to harp on. 

noun
  • Any of various freshwater fish of the family Cyprinidae, especially the common carp, Cyprinus carpio. 

nay-say

verb
  • To speak negatively of something. 

  • To reply no. 

How often have the words carp and nay-say occurred in a corpus of books? (source: Google Ngram Viewer )