Where does “yerno” come from?

yerno (Old Spanish) comes from Latin gener, from Proto-Italic genros, from Proto-Indo-European ǵm̥ros, from Proto-Indo-European ǵem- — to marry.

Ancestry of “yerno”, step by step

StepLanguageWordMeaning
1Latingenerson-in-law
2Proto-Italicgenros—
3Proto-Indo-Europeanǵm̥ros—
4Proto-Indo-Europeanǵem-to marry

Words derived from “yerno”

Every word from Proto-Indo-European ǵem- →Every word from Proto-Indo-European ǵm̥ros →Every word from Proto-Italic genros →