Where does “????” come from?

???? (Umbrian) comes from Proto-Italic ongʷən, from Proto-Indo-European h₃engʷen-, from Proto-Indo-European h₃engʷ- — to smear, to anoint.

Ancestry of “????”, step by step

StepLanguageWordMeaning
1Proto-Italicongʷən—
2Proto-Indo-Europeanh₃engʷen-—
3Proto-Indo-Europeanh₃engʷ-to smear, to anoint

Words derived from “????”

Every word from Proto-Indo-European h₃engʷ- →Every word from Proto-Indo-European h₃engʷen- →Every word from Proto-Italic ongʷən →