The term 'Puritanical Sort' can be defined as a 'PRUDE', which is a five letter word. The term 'PRUDE' is used to describe someone who is excessively modest or proper, and who may be overly concerned with morality and propriety. This term is often used to describe people who are very conservative in their views and behavior. Puritanical Sort is often used to describe those who adhere to strict religious beliefs and practices.