forwarn or forewarn /fər- or för-wörnˈ/

To forbid

• artfully
• artfulness
• artfulnesses
• arthouse
• arthouses
• arthralgia
• arthralgias
• arthralgic
• arthritic
• arthritics
• arthritis
• arthritises
• arthrodeses
• arthrodesis
• arthromere
• arthromeres
• arthropathies
• arthropathy
• arthroplasties
• arthroplasty
• arthropod
• Arthropoda
• arthropodal
• arthropods
• arachis