Where does “espousen” come from?

espousen (Middle English) comes from Old French espouser, 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.

Ancestry of “espousen”, step by step

StepLanguageWordMeaning
1Old Frenchespouserto marry
2Latinspōnsōto betroth
3Latinspōnsusa groom
4Latinspondeōto promise, bind or pledge oneself, contract, vow
5Proto-Italicspondeōto promise, to pledge
6Proto-Indo-Europeanspondéyeti—
7Proto-Indo-Europeanspend-to libate

Words derived from “espousen”

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