difference between desire, want, and wish

desire - (хүсэн тэмүүлэх, хүслээ биелүүлэх)desire means a strong wish in which a person is gonna use his effort to fulfill it. The word ‘desire’ is used in the sense of ‘an unsatisfied longing(эрмэлзэл) or craving(мөрөөдөл)’ as in the expression ‘desire for wealth’. The word ‘desire’ in the expression gives the sense of ‘craving or longing for wealth’.
1 (formal) to want something; to wish for something
desire something
      ---- We all desire health and happiness.
2 to be sexually attracted to someone
desire someone
      ---- He still desired her.
wish - (хүсэмжлэх, хүсэн ерөөх)wish means you have feelings for something but u are not using efforts to fulfill it and u hope that ur wish fulfils naturaly
1 [transitive] (not usually used in the present progressive tense) to want something to happen or to be true even though it is unlikely or impossible
       ---- I wish I were taller.
2 [intransitive, transitive] (formal) to want to do something; to want something to happen
       ---- You may stay until the morning, if you wish.
3 [intransitive]to think very hard that you want something, especially something that can only be achieved by good luck or magic
wish (for something)    
        ----- She shut her eyes and wished for him to get better.
want - (хүсэх, шаардах)
1 [transitive] to have a desire or a wish for something
       --- Do you want some more tea?

difference between desire, wish

• desire means a strong wish in which a person is gonna use his effort to fulfill it.
  wish means you have feelings for something but u are not using efforts to fulfill it and u hope that ur wish fulfils naturaly

• To me, desire implies a willingness to actively participate in achieving the outcome. Wish is more passive - like a quiet longing - whereas desire is NOT passive. It is fiery. It implies you would be thrilled to roll up your sleeves and do whatever it takes to make it happen.
  
  If a man tells a woman that he "wishes" for her instead of "desires" her, he might as well go home now....

• Wish and Desire are two words in the English language that are often confused. They appear to have similar meanings but strictly speaking there is some difference between the two words.
  Wish is often accompanied(дагалдах, дагах) by an aspiration(тэмүүлэл, хүсэл эрмэлзэл) for something as in the expression ‘wish for happiness’.
  The word ‘desire’ is used in the sense of ‘an unsatisfied longing(эрмэлзэл) or craving(мөрөөдөл)’ as in the expression ‘desire for wealth’. The word ‘desire’ in the expression gives the sense of ‘craving or longing for wealth’.
  One of the main differences between the words ‘wish’ and ‘desire’ is that the quality of ‘craving’ is not found in ‘wish’ whereas the word ‘desire’ is always accompanied by the quality of ‘craving’ in its sense.