Alter Aeon Online Help

Keywords are:  'force -force'

When you want to take a possibly dangerous action or irreversible action,
such as dropping a full container or autobinding an antique item, the
game will require you to add the '-force' keyword to make sure you
really want to do it.

Note that '-force' is a single word, spelled with a dash in front: dash
force.  If you leave off the dash, it will not work.