flounder vs mull

flounder

verb
  • To act clumsily or confused; to struggle or be flustered. 

  • To flop around as a fish out of water. 

  • To be in serious difficulty. 

  • He gave a good speech, but floundered when audience members asked questions he could not answer well. 

  • To make clumsy attempts to move or regain one's balance. 

noun
  • A bootmaker's tool for crimping boot fronts. 

  • A European species of flatfish having dull brown colouring with reddish-brown blotches; fluke, European flounder, Platichthys flesus. 

  • Any of various flatfish of the family Pleuronectidae or Bothidae. 

mull

verb
  • To work (over) mentally; to cogitate; to ruminate. 

  • To chop marijuana so that it becomes a smokable form. 

  • To dull or stupefy. 

  • To powder; to pulverize. 

  • To heat and spice something, such as wine. 

  • To join two or more individual windows at mullions. 

noun
  • An inferior kind of madder prepared from the smaller roots or the peelings and refuse of the larger. 

  • A stew of meat, broth, milk, butter, vegetables, and seasonings, thickened with soda crackers. 

  • dirt; rubbish 

  • A thin, soft muslin. 

  • A promontory. 

  • A snuffbox made of the small end of a horn. 

  • The gauze used in bookbinding to adhere a text block to a book's cover. 

  • Marijuana that has been chopped to prepare it for smoking. 

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