English dialects glossary. 2013.
Derwenter — (history) ex convict from Tasmania (from the convict settlement on the Derwent River, Tasmania) … Dictionary of Australian slang
Derwenter — /ˈdɜwɛntə/ (say derwentuh) noun Obsolete Colloquial an ex convict from Tasmania. {Derwent + er1} …
Derwenter — … Useful english dictionary