shrivel

(shrĭvˈəl)

1. To become or make shrunken and wrinkled, often by drying: Leaves die, fall, and shrivel. The heat shriveled the unwatered seedlings.
2. To lose or cause to lose vitality or intensity: My enthusiasm shriveled as the project wore on. Inflation shriveled the buying power of the dollar.
3. To become or make much less or smaller; dwindle.