incubus (n.)
- bale
- bogey
- bogeyman
- bugaboo
- bugbear
- burden
- burthen
- cacodemon
- cargo
- charge
- cumber
- cumbrance
- daydream
- demon
- devil
- drag
- dream
- dybbuk
- fiend
- freight
- genie
- genius
- ghost
- ghoul
- gyre
- handicap
- hellion
- hobgoblin
- horror
- incumbency
- jinni
- lading
- lamia
- load
- loading
- millstone
- monster
- nightmare
- ogre
- ogress
- oppression
- overload
- phantom
- pressure
- revenant
- reverie
- satan
- scarecrow
- scarer
- specter
- succubus
- surcharge
- terror
- vampire
- vision
- werewolf