kobold /kōˈbold/ (Ger folklore)

1. A spirit of the mines
2. A benevolent creature who may secretly help with domestic work

• gravitational
• gravitational field
• gravitational fields
• gravitationally
• gravitations
• gravitative
• gravities
• gravitometer
• gravitometers
• graviton
• gravitons
• gravity
• gravity cell
• gravity cells
• gravity-fed
• gravity-feed
• gravity-feeding
• gravity-feeds
• gravity platform
• gravity platforms
• gravity waves
• gravlax
• gravlaxes
• gravure
• gravures