grief vs upset

grief

verb
  • To deliberately harass and annoy or cause grief to other players of a game in order to interfere with their enjoyment of it; especially, to do this as one’s primary activity in the game. 

noun
  • Suffering, hardship. 

  • Emotional pain, generally arising from misfortune, significant personal loss, bereavement, misconduct of oneself or others, etc.; sorrow; sadness. 

  • Cause or instance of sorrow or pain; that which afflicts or distresses; trial. 

upset

verb
  • To disturb, disrupt or adversely alter (something). 

  • To be upset or knocked over. 

  • To shorten (a tire) in the process of resetting, originally by cutting it and hammering on the ends. 

  • To make (a person) angry, distressed, or unhappy. 

  • To tip or overturn (something). 

  • To defeat unexpectedly. 

  • To thicken and shorten, as a heated piece of iron, by hammering on the end. 

noun
  • An upper set; a subset (X,≤) of a partially ordered set with the property that, if x is in U and x≤y, then y is in U. 

  • The dangerous situation where the flight attitude or airspeed of an aircraft is outside the designed bounds of operation, possibly resulting in loss of control. 

  • An unexpected victory of a competitor or candidate that was not favored to win. 

  • An overturn. 

  • Disturbance or disruption. 

  • An upset stomach. 

adj
  • Angry, distressed, or unhappy. 

  • Feeling unwell, nauseated, or ready to vomit. 

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