While "pro-" itself doesn't directly mean "advanced," it often indicates movement forward or progress. In the context of "advanced," it suggests a movement to a higher or more developed stage.
Here's why "pro-" works:
* "Pro-" in "progress": This is the most direct example. "Progress" literally means "moving forward" (from the Latin "progredior").
* "Pro-" in "proceed": To "proceed" means to move forward or continue.
* "Pro-" in "proficient": Being proficient implies having moved forward in skill or knowledge.
While "advanced" is a more modern word, the concept of moving forward is inherent to the idea of advancement.