The term "divested oneself" refers to the action of giving up or relinquishing something, often in a financial or business context. Antonyms for this phrase would include acquiring, retaining, holding, possessing, or keeping. These terms imply gaining or maintaining control over something, rather than giving it up or letting it go. In a personal context, antonyms might include embracing, accepting, or consenting to something, rather than rejecting or disowning it. Depending on the context, there may be many different antonyms for "divested oneself," each with its own nuance of meaning and connotation.