mud vs mull

mud

verb
  • To make muddy or dirty; to apply mud to (something). 

  • To participate in a MUD or multi-user dungeon. 

  • To go under the mud, as an eel does. 

  • To make turbid. 

noun
  • Drilling fluid. 

  • Money, dough, especially when proceeding from dirty business. 

  • A mixture of water and soil or fine grained sediment. 

  • Coffee. 

  • A traditional Dutch unit of dry measure of variable size, frequently about 3 bushels. 

  • A traditional Dutch unit of land area, vaguely reckoned as the amount of land required to sow a mud of seed. 

  • A plaster-like mixture used to texture or smooth drywall. 

  • Stool that is exposed as a result of anal sex. 

  • A kind of box traditionally used in the Netherlands for measuring muds. 

  • A black person. 

  • A particle less than 62.5 microns in diameter, following the Wentworth scale 

  • Willfully abusive, even slanderous remarks or claims, notably between political opponents. 

  • Wet concrete as it is being mixed, delivered and poured. 

mull

verb
  • To powder; to pulverize. 

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

  • To dull or stupefy. 

  • To heat and spice something, such as wine. 

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

  • 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 mud and mull occurred in a corpus of books? (source: Google Ngram Viewer )