What does the prefix path- mean?
Path- (or patho-) comes from the Greek pathos, which meant "suffering", "feeling" or "emotion". In medicine it creates words about diseases; in the world of feelings, it appears in concepts like empathy and sympathy. It is one of the prefixes with two faces: body and emotions.
Path- also lives at the end of words
The same root also turns up at the end of words, as -pathy, where it describes a feeling or a condition, and as -path, where it names a type of person. That is why words in this family can start or end with it: some are about disease, others about emotions. Spotting the root in either position gives you a good clue to the meaning.