carp vs hypercriticize

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. 

hypercriticize

verb
  • To criticize with unjust severity. 

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