Explanation: 'I' is both a Latin letter and a numeral. In Roman numerals, two numbers next to each other add together - as in, 'II' is '2'. This joke is making fun of the fact that ii is both a very common ending for Latin words (something to do with grammar, Latin grammar is a nightmare), and the number 2 (as in, a sequel and not an original).
THEY GAVE US POMPE II, BUT NOT POMPE I
something to do with grammar
It's mostly because of the suffix -ius /jus/, added to nouns to form adjectives. Both the nominative plural and genitive singular of that suffix are -iī /ji:/, so if you're talking about multiple of that thing or something belonging to that thing, it gets the -iī.
Here's a totally serious video representing the true pronunciation of the suffix and totally not some internet meme. (Yup, it's like that "yee".)
It gets worse in this word though. Classical pronunciation was likely /pom.pej.ji:/, both the first and second "i" were long, or like you had three "i" in a row. And this mess wasn't even originated in Latin, but a Southern relative called Oscan.
Latin grammar is a nightmare
YOU TAKE THAT BACK
I was a Latin tutor for a while, grammar was actually my favourite part. I used quizzing my students on the meaning of words to conceal when I wasn't sure myself because I never did get along with memorising vocabulary (though seeing words used does help remember them).
Me at the french fuel station.
me talking to le chat and qwant
