Where does “espousal” come from?
espousal (Middle English) comes from Old French espousailles, from Latin sponsalia, from Latin sponsalis, from Latin sponsa, from Latin sponsus, from Latin spondeo, from Proto-Italic spondeō, from Proto-Indo-European spondéyeti — to libate.
Ancestry of “espousal”, step by step
Words derived from “espousal”