unkeyword

UNKEYWORD  -  remove keywords from the outgoing message

Usage:  UNKEYWORD keyword-name

The UNKEYWORD command removes a keyword from the outgoing message.  When
  you remove the last keyword, it also deletes the "keyword" header
  field from the message.  

Example:
    Send>unkeyword bird 	#removes keyword "bird" from the message

For more help type "help" and one of these topics:
  keyword   set keywords   headers   message-tagging