Psst. I have something to tell you: factoid probably doesn't mean what you think it means. Don't worry, though, you are not alone and you can change.

"Factoid is now almost exclusively used to mean a brief interesting fact," The Grammarist notes with resignation. "This definition is still considered incorrect by people who follow English usage, but it's so widespread that we have to accept it, even if it does contradict the word's original sense."

I, too, was once in league with the barbarians. I had thought a factoid was a diminutive form of fact more than a derogatory one. Just last week, I used the word factoid in a recent post on the boom box's stunning success ("That factoid is a sidenote in a 2011 paper that I stumbled on from the Journal of Management and Marketing Research," I wrote.)

The next day, I received the following email from Jim Milstein of New Uraniborg, Colorado:

I wish you, and a whole lot of others, would cleave to Norman Mailer's original coinage of the word factoid. The suffix -oid usually means resembling, but not really a member of some category. Examples: humanoid, planetoid. So a factoid should properly be (and as Mailer used it) something that resembles a fact, but is not a fact. You, and the whole lot of others, ought instead to use another word for a small probably unimportant but interesting fact. I suggest the coinage, factlet . In all other respects, I enjoy your writing and wish you well.



My standard response to grammarian challenge is this: language changes and words acquire new meanings. Deal with it. And factoid is so damn useful, especially when you write blog posts on the web that often revolve around brief interesting facts like the boom box's triumph.