Where does “vassallo” come from?

vassallo (Portuguese) comes from Portuguese vassalo, from Old Portuguese vassalo, from Medieval Latin vassallus, from Latin vassus, from Gaulish wassos, from Proto-Celtic wāstos, from Proto-Indo-European h₁weh₂- — to leave, abandon, give out.

vassallo (Portuguese): Obsolete spelling of vassalo

Definitions

Obsolete spelling of vassalo

Ancestry of “vassallo”, step by step

Step	Language	Word	Meaning
1	Portuguese	vassalo	vassal; subordinate
2	Old Portuguese	vassalo	vassal; subject
3	Medieval Latin	vassallus	manservant, domestic, retainer
4	Latin	vassus	vassal of vassals; servant
5	Gaulish	wassos	young man, squire
6	Proto-Celtic	wāstos	empty
7	Proto-Indo-European	h₁weh₂-	to leave, abandon, give out

Every word from Proto-Indo-European h₁weh₂- →Every word from Proto-Celtic wāstos →Every word from Gaulish wassos →