I looked up the etymology of nary and found that it is a combination of ’never a’ and that this combination is known as a Pleonasm.

But is it, because pleonism is described as

a redundancy in linguistic expression, such as “black darkness” or “burning fire”. It is a manifestation of tautology by traditional rhetorical criteria and might be considered a fault of style.

However, pleonasm may also be used for emphasis, or because the phrase has become established in a certain form. So by that definition nary is a pleonasm.

Nary has a description been bettered expressed.