Emacerate, which means to become thin or wasted away, has a few synonyms that can be used interchangeably. Some of these words include waste, atrophy, shrivel, thin out, become gaunt, become skinny, and become emaciated. These words can be used in a variety of contexts, but are generally used to describe things or people becoming thinner or wasting away due to illness, starvation, or aging. For example, "The plant began to shrivel and waste away as it was not receiving enough water," or "The old man had become skinny and gaunt due to his illness." Whatever the context, these synonyms for emacerate can be used to describe similar situations.