dither vs fuss

dither

verb
  • To do something nervously. 

  • To render an approximation of (an image or graphic) by using dot patterns to simulate the appearance of colors or shades not in the system palette. 

  • To be uncertain or unable to make a decision about doing something. 

  • To tremble, shake, or shiver with cold. 

  • To intentionally add noise to a signal to randomize errors. 

noun
  • A form of noise which is intentionally applied to randomize errors which occur in the processing of both digital audio and digital video data. 

  • The use of dot patterns to approximate colors not available in the palette. 

  • The state of being undecided. 

fuss

verb
  • To be very worried or excited about something, often too much. 

  • To show affection for, especially animals. 

  • To pet. 

  • To cry or be ill-humoured. 

  • To fiddle; fidget; wiggle, or adjust 

noun
  • Excessive activity, worry, bother, or talk about something. 

  • A complaint or noise; a scene. 

  • An exhibition of affection or admiration. 

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