What is "eponine"

Éponine Thénardier , also referred to as the "Jondrette girl", is a fictional character in the 1862 novel Les Misérables by Victor Hugo.

The character is introduced as a spoiled and pampered child, but appears later in the novel as a ragged and impoverished teenager who speaks in the argot of the Parisian streets, while retaining vestiges of her former charm and innocence.