Homonym: mega- (Large)
The prefix "mega-" comes from the Greek word "megas," meaning "great" or "large." It is commonly used in the metric system to denote a factor of one million (10^6). For example, a megabyte is equal to one million bytes, and a megawatt represents one million watts of power.
In everyday language, "mega-" can also describe something that is exceptionally large or impressive. For instance, a megastore refers to a very large retail store, while a megastar is a celebrity who has achieved immense fame and popularity. This prefix helps convey the idea of scale and significance.