languor vs temperament

languor

noun
  • Melancholy caused by lovesickness, sadness, etc.; (countable) an instance of this. 

  • A state of the body or mind caused by exhaustion or disease and characterized by a languid or weary feeling; lassitude; (countable) an instance of this. 

  • Dullness, sluggishness; lack of vigour; stagnation. 

  • Listless indolence or inactivity, especially if enjoyable or relaxing; dreaminess; (countable) an instance of this. 

  • Heavy humidity and stillness of the air. 

verb
  • To languish. 

temperament

noun
  • A tendency to become irritable or angry. 

  • Individual differences in behavior that are biologically based and are relatively independent of learning, system of values and attitudes. 

  • A person's usual manner of thinking, behaving or reacting. 

  • The altering of certain intervals from their correct values in order to improve the moving from key to key. 

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