forwarn or forewarn /fər- or för-wörnˈ/

To forbid

• northernizing
• northern lights
• northernmost
• northerns
• northers
• North Germanic
• northing
• northings
• northland
• northlander
• northlanders
• northlands
• Northman
• northmost
• north-north-east
• north-north-west
• north polar
• north pole
• norths
• North Sea gas
• North Sea oil
• north-seeking
• North Star
• Northumb.
• Northumbrian