The crossword solutions for the term 'Wordsmith Peter Mark ___' is Roget (5 letters). Peter Mark Roget was a British physician, natural theologian and lexicographer. He is best known for publishing one of the world's most famous reference works, Roget's Thesaurus of English Words and Phrases. Roget was a polymath who made numerous contributions to science, including the first formulation of what is now known as the power law of learning. He also wrote extensively on topics such as education, philosophy, psychology, and theology.