forwarn or forewarn /fər- or för-wörnˈ/

To forbid

• unemotioned
• unemphatic
• unemployable
• unemployed
• unemployment
• unemployment benefit
• unemployments
• unemptied
• unenchanted
• unenclosed
• unencumbered
• unendangered
• unendeared
• unending
• unendingly
• unendingness
• unendingnesses
• unendowed
• unendurable
• unendurably
• unenforceable
• unenforced
• unengaged
• un-English
• un-Englished