The most common derivational morpheme in Bardi is the suffix . This morpheme attaches to the end of a noun to denote a person who is heavily associated with that area or who has reached a level of expertise in it. For example, means ‘speed,' while means a person who is an expert in speed (i.e., a super fast runner). Similarly, the Bardi word for a storyteller, is derived when this suffix is attached to the noun , meaning ‘story.’ Despite its frequency of use, is not productive and can only be applied to certain nouns (though there does not appear any systematicity governing "which" nouns do and do not permit its application).