It is a habitual craving or desire for morphine.
A craving - is a desire to have something. A reward is a 'present' for doing something.
desire and craving
je t'adore, j'ai besoin de toi, tu me manques
Craving, desire.
Try yen.
Je vous désire.
An uneasy sensation occasioned normally by the want of food; a craving or desire for food., Any strong eager desire., To feel the craving or uneasiness occasioned by want of food; to be oppressed by hunger., To have an eager desire; to long., To make hungry; to famish.
-An overwhelming desire or craving: a lust for power.-Intense eagerness or enthusiasm: a lust for life-Intense or unrestrained sexual craving.
longing, hope, desire, hunger, appetite, yearning, thirst
The word is craving
An uneasy sensation occasioned normally by the want of food; a craving or desire for food., Any strong eager desire., To feel the craving or uneasiness occasioned by want of food; to be oppressed by hunger., To have an eager desire; to long., To make hungry; to famish.