Lila is "a concept within Hinduism literally meaning pastime, sport or play ... Within non-dualism, Lila is a way of describing all reality, including the cosmos, as the outcome of creative play by the divine absolute. In the dualistic schools of Vaishnavism, Lila more simply refers to the activities of God and his devotees, as distinct from the common activities of karma."
Lilian is a Latin name deriving from the Lilium flower, and may have been the precursor to the given name of the Charmbridge Academy's Dean Grimm.
Zills are "tiny metallic cymbals used in belly dancing and similar performances." The surname would eventually reappear with one of the victims of the Deathly Regiment, Hesperia Zill.