dabble vs mull

dabble

verb
  • To make slightly wet or soiled by spattering or sprinkling a liquid (such as water, mud, or paint) on it; to bedabble. 

  • To feed without diving, by submerging the head and neck underwater to seek food, often also tipping up the tail straight upwards above the water. 

  • To participate or have an interest in an activity in a casual or superficial way. 

  • To cause splashing by moving a body part like a bill or limb in soft mud, water, etc., often playfully; to play in shallow water; to paddle. 

noun
  • A spattering or sprinkling of a liquid. 

  • An act of splashing in soft mud, water, etc. 

  • An act of participation in an activity in a casual or superficial way. 

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