Command: tag

Usage: tag [all] [<item>] [in <object>]
       tag all using

This will allow you to designate items that you wish to not be able to
sell in a shop or the auction.  If you wish to sell the item again, you
may use the untag command.  Tagging items lasts only for a single login or
until you die.  After one of these events, you must tag your items again.

Examples:
'tag sword'     : Tag a particular item.
'tag all'       : Tag everything in your immediate inventory.
'tag all using' : Tag all of your worn items and your wielded weapon.
'tag everything': Tag all of your items, even those in containers.

See also:    untag