Where does “unto” come from?

unto (Catalan) comes from Catalan untar, from Latin unctāre, from Latin ungĕre, from Latin unguere, from Proto-Italic ongʷō, from Proto-Indo-European h₃engʷ- — to smear, to anoint.

unto (Catalan): ointment, unguent

Definitions

ointment, unguent

Ancestry of “unto”, step by step

Step	Language	Word	Meaning
1	Catalan	untar	to anoint; to smear; to bribe
2	Latin	unctāre	—
3	Latin	ungĕre	—
4	Latin	unguere	second-person singular future passive indicative...
5	Proto-Italic	ongʷō	to anoint
6	Proto-Indo-European	h₃engʷ-	to smear, to anoint

Every word from Proto-Indo-European h₃engʷ- →Every word from Proto-Italic ongʷō →Every word from Latin unguere →