Where does “sponsatus” come from?

sponsatus (Latin) comes from Latin spōnsō, from Latin spōnsus, from Latin spondeō, from Proto-Italic spondeō, from Proto-Indo-European spondéyeti, from Proto-Indo-European spend- — to libate.

sponsatus (Latin): betrothed

Definitions

betrothed

Ancestry of “sponsatus”, step by step

Step	Language	Word	Meaning
1	Latin	spōnsō	to betroth
2	Latin	spōnsus	a groom
3	Latin	spondeō	to promise, bind or pledge oneself, contract, vow
4	Proto-Italic	spondeō	to promise, to pledge
5	Proto-Indo-European	spondéyeti	—
6	Proto-Indo-European	spend-	to libate

Every word from Proto-Indo-European spend- →Every word from Proto-Indo-European spondéyeti →Every word from Proto-Italic spondeō →