Here's why:
* "Para-" comes from the Greek word "para" meaning "beside, near, along, or alongside."
Examples:
* Parallel: Lines that run beside each other.
* Paraphrase: To restate something in your own words, alongside the original.
* Parasite: An organism that lives beside another organism and benefits from it.
While "beside" is not a prefix itself, "para-" is a prefix that directly relates to the meaning of "beside."