Where does “esposa” come from?

esposa (Old Occitan) comes from Latin sponsa, from Latin sponsus, from Latin spondeo, from Proto-Italic spondeō, from Proto-Indo-European spondéyeti, from Proto-Indo-European spend- — to libate.

Ancestry of “esposa”, step by step

StepLanguageWordMeaning
1Latinsponsabride; fiancée
2LatinsponsusA groom; A fiancé; A bail, surety
3LatinspondeoI promise, bind or pledge myself, contract, vow;...
4Proto-Italicspondeōto promise, to pledge
5Proto-Indo-Europeanspondéyeti—
6Proto-Indo-Europeanspend-to libate
Every word from Proto-Indo-European spend- →Every word from Proto-Indo-European spondéyeti →Every word from Proto-Italic spondeō →