Aught, meaning “zero,” is one of those odd terms where the original version—naught—was heard as two words, so people started saying an aught. This same process, known as metanalysis, misdivision, and a few other names, happened with napron and nadder, which eventually became apron and adder. This is part of a complete episode.
More from this show
According to Gobsmacked: The British Invasion of American English (Bookshop|Amazon) by Ben Yagoda, the word smarmy, meaning “unctuous” or “ingratiating,” may come from a 19th-century magazine contest, in which readers sent in...
Mary Beth in Greenville, South Carolina, wonders: Why do we say four-oh-nine for the number 409 instead of four-zero-nine or four-aught-nine? What are the rules for saying either zero or oh or aught or ought to indicate that arithmetical symbol...