A Light in the Dark
Quintaril is the home of the Western elves. It means Beautiful Forest in the Elvish tongue.
Quintaril Elves call themselves Altarilis in their own language which means Forest Souled. They are a shy people who do not interact much with outsiders. The Altarilis have a very strong bond with nature, and trees in particular.
Forest and City
The elves do not call their city Quintaril, rather Quintaril Sopat, which translates very roughly to Quintaril Gathering or Quintaril Bazaar or Quintaril Conclave. Outsiders have taken to just calling it Quintaril and left it at that.