"withering body" is correct and usable in written English.
You can use it to describe a physical body that is wasting away due to illness or disease. For example, "The cancer caused her body to wither away, slowly consuming her until she passed away."
All over Ms. Begum's tiny, slowly withering body, signs of arsenic poisoning have emerged.
Buckland knocked out Sykes in one round (the champ's first loss) and stopped Matthews with a withering body shout in round two to take the £32,000 prize.
Dad's withering body simply couldn't take all the blows and punches that cancer was constantly throwing at him.
But he was also the protector of those sick with "unsteady step, trembling limbs, limping knees, bent fingers and hands, paralysed hands, lameness, crookedness, and withering body".
I could see the muted terror in their eyes when they'd come to visit, appraising my pallid, sweating face and withered body.
The withered body toward which a stream starts to make its way may have passed the source years before and not have known it.
BEIJING — Sang Lan rolled her wheelchair to a spot overlooking the vault, her broken, withered body dressed in jeans and a red shirt.
And Valentina, Alik's current squeeze, weeps at his withered body, climbing into bed to cradle it between her "celebrated breasts".
Optimism Can Break the Heart In one hut, hidden deep in the swaying grass, Nokulunga Ntshangase, 23, a lovely girl with a withered body, insists that she will survive H.I.V. "I am getting married," she says.
While Pepper struggles to get decent treatment from an indifferent staff, he also forges alliances — some shakier than others — with his fellow patients and marshals them to fight a beast that has the withered body of an old man and the large head of a bison.
I can feel the searing heat emanating from your withered body.
