fer is a prefix derived from Latin, meaning "to carry" or "to bear." It is commonly used in various English words, such as transfer, which means to carry something from one place to another, and refer, which means to carry information to someone else. In biology, fer appears in terms like fertilization, where it refers to the process of carrying together male and female gametes to create new life. This prefix helps convey the idea of movement or transmission in different contexts, making it a useful component in the English language.