Nadder

Wel, Mai bruvverz biokitteh got himself bited bai a nadder, but heez orl rite naow! poohbear3931 says: ❋ Unknown (2008)

Perhaps Mike would also propose that we rescind the great vowel shift, and that we should no longer use the words apron or adder, because they were earlier napron and nadder, and people got a bit confused about the way they related to the indefinite article -- a napron got construed as an apron, etc. ❋ David Wharton (2007)

That creature was originally “a nadder”: then the two words took to bandying the poor ❋ Unknown (2003)

'He's deaf and dumb as a nadder, your honor,' remarked the solemn policeman who introduced the silent man. ❋ Various (N/A)

Misdivision of Words and Syllables -- This defect makes the words an ambassador sound like a nambassador, or an adder like a nadder. ❋ Joseph Triemens (N/A)

In contrast to supposed words that never did exist, are real words that exist through a mistake, such as apron and adder, where the n, which really belongs to the word itself, has been supposed, mistakenly, to belong to the article; thus apron should be napron (Fr. naperon), and adder should be nadder (A. - S. næddre). ❋ Unknown (1893)

In contrast to supposed words that never did exist, are real words that exist through a mistake, such as _apron_ and _adder_, where the _n_, which really belongs to the word itself, has been supposed, mistakenly, to belong to the article; thus apron should be napron (Fr. _naperon_), and adder should be nadder (A. - S. _n < ae > ddre_). ❋ Henry Benjamin Wheatley (1877)

In the same way, Dent writes, a nadder, a noumpere and a napron became an 'adder,' 'umpire' and ❋ WARREN CLEMENTS (2010)

[12: 03] matociquala: and an adder used to be a nadder. ❋ Cvillette (2008)

Examples are an umpire < a nompere; an adder < a nadder; an apron < a napron (compare napery); and an orange < a narancia (compare Spanish naranja). ❋ Unknown (1983)

(This latter kind of false analysis also gave rise to English (an) apron and (an) adder, from a napron and a nadder.) ❋ Unknown (1982)