unaction - Delete an action
unalias - Delete an alias
unkb_bind - Delete a key binding
unsub - Delete an sub
un[type] pattern
Depening on which command used delete all of the actions, aliases, subs, or key bindings matching the glob-pattern pattern.
unaction "Renir grins at you"
Deletes a specific action.
unaction Renir*
Deletes any action that starts with Renir.