IPA: //ˈɡoʊstli//
KK: /ɡoʊstli/
Having a pale or eerie appearance, similar to that of a ghost; often used to describe something that seems supernatural or haunting.
The ghostly figure appeared in the fog, sending chills down my spine.
Ghostly → It is formed from "ghost" (from Old English *gāst*, meaning spirit or soul) and "-ly" (meaning in the manner of). The word "ghostly" describes something that is in the manner of a spirit or resembles a ghost.
Think of a 'spirit' ('ghost') that appears 'in the manner of' ('-ly') a ghost — that's why ghostly means resembling a ghost.