Lîylîyth (לִילִית) means night creature, screech owl, night monster. From layil (night). Appears once in the Hebrew Bible. In later Jewish tradition, the name became associated with a demonic figure.
Isaiah 34:14: 'Desert creatures will meet with hyenas, and wild goats will bleat to each other; there the night creature will also lie down and find for herself a place of rest.' This describes the utter desolation of Edom after God's judgment — a land so completely devastated that only the wildest, most fearsome creatures inhabit it. The absence of God's blessing reduces a nation to a haunt for desert creatures. The image serves as a warning: rebellion against God leads to desolation, while obedience leads to fruitfulness (Isaiah 35 immediately follows with restoration).