The word ghast may either be a recent back-formation, arising from either the word "ghastly", which came from Anglo-Saxon g?stl?c = "like a ghost"; or the word "aghast", from the Middle English g?st?n to frighten. Or alternatively Lovecraft may have derived it directly from the Anglo-Saxon form of the word ghost: g?st.Ghast may also refer to: Ghasts are a race of creatures in H. P. Lovecraft's Dreamlands. This appears to be the earliest use of the term, from which the uses below seem to