prďánkovat (Czech) comes from Czech prdět, from Serbo-Croatian pr̀deti, from Proto-Slavic pьrděti, from Proto-Balto-Slavic pirdḗˀtei, from Proto-Indo-European pr̥d-éh₁-ye-ti, from Proto-Indo-European perd- — to fart loudly, pass gas, break wind.