picejo

Pico is a pizza and -ej- is the place-where suffix, so a picejo is a place where pizza happens. It sits in a large and completely regular family: lernejo a learning-place, bakejo a baking-place, drinkejo a drinking-place, picejo a pizza-place. Nothing here is idiomatic and nothing needs memorising separately.

What makes it worth a page is that Italian did the identical sum. Pizzeria is pizza plus -eria, the Italian place suffix. Esperanto did not borrow pizzeria; it borrowed the pizza and built the shop itself, and the two answers came out matching. That is the affix system doing exactly what it advertises, on a word Zamenhof could not have anticipated in 1887.

It is also a small argument against the idea that Esperanto is stuck in the nineteenth century. Pico entered the language when pizza entered Europe, and the machinery for making a shop out of it was already sitting there waiting.