Lalla is a Berber word, which literally means Lady. It is an honorific, a term of respect, for women in Morocco. It is used for human women but is also the most widespread term of address for female spirits, common to both Muslims and Jews. The same term is used to address female Muslim saints, female Jewish saints, female Djinn or other female spirits. These spirits are virtually always addressed with the honorific and so Lalla has become part of their names.
From the Encyclopedia of Spirits: The Ultimate Guide to the Magic of Fairies, Genies, Demons, Ghosts, Gods & Goddesses– Written by Judika Illes Copyright © 2009 by Judika Illes.