As verbs the difference between durn and dura
is that
durn is (slang) rhotized pronunciation of doing while
dura is .
As an adjective durn
is (us|informal) euphemism for darn, in itself a euphemism for damn.
As an adverb durn
is darn; damned; extremely.
As an interjection durn
is (us|informal) euphemism for darn, in itself a euphemism for damn.