How will the knowledge of Latin and Greek prefixes and roots benefit a student?

Knowing what roots and prefixes mean are helpful to all students, because it makes learning vocabulary easier, and it also helps in learning any other romantic language. The reason it's so helpful for English vocabulary help is because English is at least 60% descended solely from Latin. An example of a vocabulary Word using the latin to learn the meaning is "commiserate." Com- from con meaning with. miser- from miserus, misera, miserum, meaning wretched or miserable. Commiserate means to sympathize with.