Mega is of Greek origin and means 'great' or 'large'. It's a unisex name, although it's more commonly used for girls. The name gained popularity in the 20th century, likely due to its modern sound and positive connotation. Mega is often associated with the concept of bigness or importance, which can make it a powerful choice for a name.
"It appears that the name Mega has seen a gradual increase in popularity over time, with a significant spike in recent years."