cacodemon or cacodaemon /kak-ō-dēˈmən/

1. An evil spirit or devil
2. A nightmare (Shakespeare)

• gubbing
• gubbins
• gubbinses
• gubernacula
• gubernacular
• gubernaculum
• gubernation
• gubernations
• gubernator
• gubernatorial
• gubernators
• gubs
• guck
• guckier
• guckiest
• gucks
• gucky
• guddle
• guddled
• guddles
• guddling
• gude
• gude-
• gude-dame
• gudeman