noun
hag
HAG/hæɡ/
A frightening or malicious old woman or witchlike female figure.
The folktale's hag waits beside the dark doorway.

Etymology
Hag probably comes from Old English hægtesse, a witch or sorceress. This connects the frightening old woman of the modern sense with an older figure associated with supernatural powers.
In context
in some Tales she is depicted as a filthy old hag whereas in others she is conversely said to appear as a young maiden of exceptional Beauty