"Doth credit to" is a phrase that means to bring honor and praise to someone or something. There are lots of synonyms for this phrase including: reflects well on, enhances the reputation of, adds value to, elevates, uplifts, improves, dignifies, sanctions, commends, endorses, and validates. All of these synonyms capture the idea of doing or being something that brings positive attention and respect to the person or thing in question. Whether you are talking about a person, a product, a company, or any other entity, using one of these synonyms can help you convey the sense of pride and admiration that comes with "doing credit to" something.