-ez

Oznaczający (Angielski)

patronymic surname suffix, that forms many Spanish surnames

Etymologia (Angielski)

Pokrewny z portugalski: -es

Dziedziczone z łaciński: -itiēs

Pokrewny z rumuński: -ețe

Pokrewny z francuski: -esse

In summary

Unknown; the most popular theories are that it was either an internal innovation (from a reanalysis of the genitive in names ending with -ricus, i.e. -rici, as naming suffix) or a borrowing from pre-Roman languages (given the various forms the suffix took in the Middle Ages). Compare Portuguese -es.