It comes from the Latin word "intro," meaning "into."
Here are some examples of words using the prefix "intro-":
* Introvert: A person who is predominantly concerned with their own thoughts and feelings rather than with external things.
* Introduce: To bring something new into existence or use.
* Introduction: The act of bringing something into existence or use.
* Introspective: Characterized by or given to introspection, the examination of one's own thoughts and feelings.
* Intromission: The act of inserting or introducing something into something else.
The prefix "intro-" can be used to create a wide range of words with different meanings, but all related to the concept of "going in" or "beginning."