In Introduction to Macroeconomics today:
Random student raises his hand.
“Excuse me, could I get a copy of one of the syllabuses?”
Every single person in the room (it’s a 200-person class) rolls his or her eyes and grumbles, “Syllabi.”
It wasn’t like the person next to me just said it. It was probably everyone in the room. The room filled with a roar of the proper English pluralization.
(Though, upon further investigation, I learned from Dictionary.com that “syllabuses” is also acceptable. And, when I went to spell-check this entry, it didn’t recognize “syllabi” as a word. Weird. But I won’t tell if you won’t.)