Where does “onesto” come from?

onesto (Old Portuguese) comes from Latin honestus, from Latin honor, from Old Latin honos — Alternative form of honor.

Ancestry of “onesto”, step by step

Step	Language	Word	Meaning
1	Latin	honestus	Full of or regarded with honor/honour;...
2	Latin	honor	honor, esteem, dignity, reputation, office
3	Old Latin	honos	Alternative form of honor

onesto — Etymology, Origin & Word History | Etymology Explorer