Toyota has been conducting a poll to determine the plural of “Prius.” Will it be Priuses? Will it be the Latin-inspired Prii? Should Prius be like deer, using its singular as its plural? Or how about Prien or Prium?
The poll results are scheduled to be announced today, and early results suggest Prii could be the winner. Apparently, the people who would answer a poll like this are people likely to buy in to the idea that Prius’s Latin roots mean it should follow Latin plural-formation guidelines. (Apparently they don’t care that the Latin formula that would lead us to Prii is really a formula for making plurals out of nouns and not words that, like Prius, are really adverbs.)
Toyota would have us all waiting with bated breath to see the final outcome of this thrilling contest. But anyone familiar with basic linguistics can already predict the outcome: No one will do what Toyota says. People will do what they’ve always done, form their own plurals organically.