retard vs scud

retard

verb
  • To decelerate; to slow down. 

  • To put off; to postpone. 

  • To keep delaying; to continue to hinder; to prevent from progressing. 

noun
  • Retardation; delay. 

  • A slowing down of the tempo; a ritardando. 

  • A person or being who is extremely stupid or slow to learn. 

scud

verb
  • To speed. 

  • To race along swiftly (especially used of clouds). 

  • To skim flat stones so they skip along the water. 

  • To hit or slap. 

  • To run, or be driven, before a high wind with no sails set. 

noun
  • The drink Irn-Bru. 

  • A gust of wind. 

  • A loose formation of small ragged cloud fragments (or fog) not attached to a larger higher cloud layer. 

  • A swift runner. 

  • The act of scudding. 

  • A form of garden hoe. 

  • Any swimming amphipod. 

  • A scab on a wound. 

  • A small flight of larks, or other birds, less than a flock. 

  • Pornography. 

  • A slap; a sharp stroke. 

  • Clouds or rain driven by the wind. 

adj
  • Naked. 

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