Where does “gastly” come from?

gastly (Middle English) comes from Middle English gasten, from Old English gǣstan, from Proto-West Germanic *gaistijan, from Proto-Germanic gaistijaną.

Ancestry of “gastly”, step by step

StepLanguageWordMeaning
1Middle Englishgastento terrify
2Old Englishgǣstanto gast, frighten, afflict, torment; to torment,...
3Proto-West Germanic*gaistijan
4Proto-Germanicgaistijaną

Words derived from “gastly

Every word from Proto-Germanic gaistijanąEvery word from Proto-West Germanic *gaistijanEvery word from Old English gǣstan