Where does “vasallo” come from?

vasallo (Latin) comes from Late Latin vassallus, from Latin vassus, from Gaulish wassos, from Proto-Celtic wāstos, from Proto-Indo-European h₁weh₂- — to leave, abandon, give out.

Ancestry of “vasallo”, step by step

StepLanguageWordMeaning
1Late Latinvassallusretainer; manservant, domestic, retainer; vassal
2Latinvassusvassal of vassals; servant
3Gaulishwassosyoung man, squire
4Proto-Celticwāstosempty
5Proto-Indo-Europeanh₁weh₂-to leave, abandon, give out
Every word from Proto-Indo-European h₁weh₂- →Every word from Proto-Celtic wāstos →Every word from Gaulish wassos →