arrest vs retard

arrest

verb
  • To stop or slow (a process, course etc.). 

  • To catch the attention of. 

  • To seize (someone) with the authority of the law; to take into legal custody. 

  • To undergo cardiac arrest. 

noun
  • The judicial detention of a ship to secure a financial claim against its operators. 

  • A device to physically arrest motion. 

  • The condition of being stopped, standstill. 

  • A check, stop, an act or instance of arresting something. 

  • A scurfiness of the back part of the hind leg of a horse 

  • The process of arresting a criminal, suspect etc. 

  • A confinement, detention, as after an arrest. 

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. 

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