What does "Pi" mean?

yeah, i know it equals 22/7 and is used to find the diameter and area of circles, but why do they call it “pi”? does it have some foreign meaning (kinda like “sophomore” means “wise fool”)? or was it named after someone? or was someone just soo hungry trying to analyze their round pastry that they left off the e?

It’s the 16th letter of the Greek alphabet.

This duplicate has a lot of replies, so let’s go with that one.