Which preposition to use with witherings

of Occurrences 9%

But the suffering and waste of life, apart from the combat, the sickness, the depreciation of vital force, the withering of constitutional energy, and the mortality in camp and fortress, in barrack, tent, and hospital, have not usually been the subjects of such careful observation, nor the grounds of fear to the soldier and of anxiety to those who are interested in his safety.

Which preposition to use with  witherings