The phrase “hath shewn” is an archaic way of saying “has shown.” It comes from older forms of English, primarily used in the 16th to 18th centuries, such as in the King James Bible or works by Shakespeare. The word “hath” is the old form of “has,” while “shewn” is an earlier spelling of “shown,” meaning to display or reveal something. While this phrase is rarely used today, it adds a formal, poetic, or historical tone when encountered in literature. Its use reminds readers of the linguistic roots of modern English and evokes a sense of tradition and gravity.