Gu-za

Sumerian: gu-za - throne, chair
Serbian: guz, guza, guzica - bottom, arse. From proto Slavic *gǫzъ, *guzъ (rus. guz, slov. goza, polj. gąz)
Persian: guz - fart

I find this very funny

"Sumerian Lexicon, Version 3.0" by John A. Halloran
"Elementary Sumerian Glossary" Author: Daniel A. Foxvog