Where does “peutsa” come from?

peutsa (Ingrian) comes from Russian певе́ц, from Proto-Slavic pěvьcь, from Proto-Slavic pěti, from Proto-Indo-European poiH-.

Ancestry of “peutsa”, step by step

StepLanguageWordMeaning
1Russianпеве́цsinger
2Proto-Slavicpěvьcьsinger (nomen agentis)
3Proto-Slavicpětito sing
4Proto-Indo-EuropeanpoiH-—
Every word from Proto-Indo-European poiH- →Every word from Proto-Slavic pěti →Every word from Proto-Slavic pěvьcь →