What does the name chell mean?

It means a very ambitious and determined, possibly overly determined (maybe even stubborn) girl. She is very smart and calm. Her name means heaven/sky (Ciel) in italian. She will also be a victim of a homicidal AI that gave her false promises of cake, and a madman will help her to help him, so he won't die. Then he will feel guilty, and he will try to save her.