As with all of the Ocarina of Time Sages, she is named after a town in Zelda II: The Adventure of Link.
if you look at it chronologically, the town is actually named after her. because ocarina of time happens first
Maybe because it means she's sorry she can't be links friend.
Isn't an 'aria' some type of song, and aren't all the Kokiri named after a music scale or something?