From NPR:
The Ultimate Latin Dictionary: After 122 Years, Still At Work On The Letter ‘N’
Stefano Rocchi, a researcher on the Thesaurus Linguae Latinae, the comprehensive Latin dictionary that has been in the works since 1894 in Germany. Researchers are currently working on the letters N and R. They don’t expect to finish until around 2050.
On the second floor of an old Bavarian palace in Munich, Germany, there’s a library with high ceilings, a distinctly bookish smell and one of the world’s most extensive collections of Latin texts. About 20 researchers from all over the world work in small offices around the room.
They’re laboring on a comprehensive Latin dictionary that’s been in progress since 1894. The most recently published volume contained all the words beginning with the letter P. That was back in 2010.
And they’re not as far along as that may lead you to believe. They skipped over N years ago because it has so many long words, and now they’ve had to go back to that one. They’re also working on R at the same time. That should take care of the rest of this decade.
The Thesaurus Linguae Latinae was one of many big, scholarly projects taken on by the German government in the late 19th century.
Through two World Wars and German reunification, generations of Latin scholars have been chipping away at the same goal: documenting every use of every Latin word from the earliest Latin inscriptions in the 6th century BC up until around 200 AD, when it was in decline as a spoken language. Befitting the comprehensive nature of the project, the scholars will also include some words up to the 6th century AD.
That means poetry and history and speeches. But it also means every gravestone and street sign. It means architectural works, medical and legal texts, books about animals or cooking.
“If a word is just on a toilet in Pompeii in graffiti, you’ll find it with us,” says Marijke Ottink, who is Dutch. She’s been working on the Thesaurus for 19 years as a researcher and an editor, ever since she came to Munich.
More at the link.