Where does “пупъ” come from?

пупъ (Old East Slavic) comes from Proto-Slavic pǫpъ, from Proto-Balto-Slavic pomp-.

Ancestry of “пупъ”, step by step

StepLanguageWordMeaning
1Proto-Slavicpǫpъbud, navel
2Proto-Balto-Slavicpomp-—

Words derived from “пупъ”

Every word from Proto-Balto-Slavic pomp- →Every word from Proto-Slavic pǫpъ →