What is the meaning of Incubus?

An evil spirit supposed to oppress people while asleep, especially to have sex with women as they sleep.

A feeling of oppression during sleep, sleep paralysis; night terrors, a nightmare.

Any oppressive thing or person; a burden.

One of various of parasitic insects, especially subfamily Aphidiinae.

an incubus (evil spirit)

a nightmare (horrible dream)

a burden, obsession, yoke

the nightmare, incubus

Source: wiktionary.org