Since Luna is Celestia’s younger sister, she’s smaller than Celestia, and so Luna is “wee.”
The reason I use the phrase, “The Royal We” is because that is how Luna spoke in the episode “Luna Eclipsed,” in which she referred to herself with the “royal we.”
Ohhhhh…
Now it’s funny.
“Wee” is another word for “small.”
Since Luna is Celestia’s younger sister, she’s smaller than Celestia, and so Luna is “wee.”
The reason I use the phrase, “The Royal We” is because that is how Luna spoke in the episode “Luna Eclipsed,” in which she referred to herself with the “royal we.”