| 1 | Middle English | gostly | Belonging to or consisting of spirit, not matter;... |
| 2 | Old English | gāstlīċ | spiritual, holy, clerical , ghastly, ghostly,... |
| 3 | Old English | gāst | breath, soul, spirit, ghost, being |
| 4 | Proto-West Germanic | gaist | ghost, spirit |
| 5 | Proto-Germanic | gaistaz | terror, fear; spirit, ghost; mind |
| 6 | Proto-Indo-European | ǵʰeysd- | anger, agitation |