Where does “Lopezdiaz” come from?

Lopezdiaz (English) comes from English Lopez, from Spanish López, from Spanish -ez, from Latin -ities, from Latin -itia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

Ancestry of “Lopezdiaz”, step by step

Lopezdiaz traces back through two separate lines of ancestry.

via English Lopez

StepLanguageWordMeaning
1EnglishLopezof English speakers
2SpanishLópez
3Spanish-ezA suffix forming many Spanish surnames; A suffix...
4Latin-itiesAlternative form of -iēs
5Latin-itia-ness, -ity
6Latin-iaUsed to form a feminine abstract noun, usually...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English Diaz

StepLanguageWordMeaning
1EnglishDiaz
2SpanishDíazderived from the given name Diego
Every word from Proto-Indo-European -yós