Where does “पंच” come from?

पंच (Old Marathi) comes from Sanskrit पञ्चन्, from Proto-Indo-Aryan pánća, from Proto-Indo-Iranian pánča, from Proto-Indo-European pénkʷe — five.

Ancestry of “पंच”, step by step

StepLanguageWordMeaning
1Sanskritपञ्चन्five
2Proto-Indo-Aryanpánća—
3Proto-Indo-Iranianpánčafive
4Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Indo-Iranian pánča →Every word from Proto-Indo-Aryan pánća →