"The bedrooms are dirty."
Translation:Cubicula sordida sunt.
The etymology of some words is really interesting. sum comes from Proto-Indo-European *h₁ésmi (“I am, I exist”)
English, Latin, German
I am, ego sum, Ich bin
It is, id est, es ist
they are, ii sunt, sie sind
Actually not bad for a centuries long game of Chinese-whispers/ telephone.