mollusc vs namby-pamby

mollusc

noun
  • A weak-willed person. 

  • A soft-bodied invertebrate of the phylum Mollusca, typically with a hard shell of one or more pieces. 

namby-pamby

noun
  • One who is insipid, sentimental, or weak. 

  • Talk or writing which is weakly sentimental or affectedly pretty. 

adj
  • Lacking vigor or decisiveness; spineless; wishy-washy. 

  • Insipid and sentimental. 

verb
  • To coddle. 

How often have the words mollusc and namby-pamby occurred in a corpus of books? (source: Google Ngram Viewer )