IPA: /ˈdiːməˌnɛs/
KK: /ˈdimənəs/
A female spirit or creature that is often associated with evil or malevolence.
In the story, the hero must confront a powerful demoness who seeks to destroy the village.
Demoness → It is formed from "demon" (from Greek "daimon", meaning spirit or divine power) and "-ess" (a suffix used to denote female gender). The word "demoness" refers to a female spirit or supernatural being, often with malevolent connotations.
Think of a 'spirit' ('daimon') that is female ('-ess') — that's why a demoness is a female spirit.