I’m not speaking about the preliminary coat of paint but the word defined by Merriam-Webster as “a small book for teaching children to read; a small introductory book on a subject; a short informative piece of writing.” The dictionary gives the American pronunciation as rhyming with “dimmer,” and British as rhyming with “climber.” (Which is how both countries pronounce the paint thing.)
I have a strong and particular association with the word. The satiric magazine Mad, which was my bible as a kid, printed several dozen humorous “Primers” between 1956 and 1999. I distinctly recall my mother explaining to me how the word was pronounced–perhaps because, quite logically, I had said “pry-mer.”

As explained by Anne Curzan and Rebecca Kruth in their radio feature “That’s What They Say,”
The “primmer” pronunciation came into English from the Latin term “primarius” which meant “first.” This word can be traced back in written forms of English to the late 1300s. It originally referred to a Christian prayer book for laypeople (as opposed to clergy) that was often used to teach reading. By the 1500s, there are versions of these books that are only used to teach children to read.
In Britain, they go on, the “prye-mer” pronunciation emerged in the nineteenth century and became the dominant one in the twentieth, but “primmer” held on in the U.S.
Until recently, that is. On Facebook, I asked people how they pronounced the word and the results were illuminating. For the most part, it broke down by age: most of the people over 60 said “primmer,” and most under 60, “prye-mer.” The only non-American who responded was an English woman who has lived in the U.S. for some decades, and who said, “I don’t recall ever hearing ‘primmer.'” Of course, the word doesn’t come up that much.
The invaluable Youglish pronunciation website confirmed these impressions. It was hard to come up with a good sample size among U.K. speakers, because everybody seemed to be talking about paint or makeup, but 100 percent of the people referring “primer”-as-handbook said “prye-mer.” Among Americans, there was a perfect 8-8 split among the first sixteen examples, with a similar age breakdown as I saw on Facebook.
Notably, there were two videos featuring Bill Nye, the Science Guy (born 1955), and in both, so as to cover his bases, he said one pronunciation, then the other. In this clip, it comes it at the 1:52 mark.
















