forwarn or forewarn /fər- or för-wörnˈ/

To forbid

• melanochroous
• melanocyte
• melanocytes
• melanoid
• melanoma
• melanomas
• melanomata
• melanophore
• melanophores
• melanos
• melanoses
• melanosis
• melanotic
• melanotropin
• heir-portioner
• heir-portioners
• heir presumptive
• heirs
• heirs apparent
• heirs-at-law
• heirship
• heirships
• heirs presumptive
• Heisenberg's principle
• Heisenberg's uncertainty principle