Where does “Josephson” come from?

Josephson is an English patronymic surname derived from Joseph, which comes from Hebrew יוֹסֵף meaning "he will increase."

Ancestry of “Josephson”, step by step

Josephson traces back through two separate lines of ancestry.

via English Sơn

StepLanguageWordMeaning
1EnglishSơn—
2Middle Englishsoneson; soon; Alternative form of sonne
3Old Englishsōnaimmediately, at once
4Proto-West Germanicsān(ō)immediately
5Proto-Germanicsēna—
6Proto-Germanic*sa—
7Proto-Austronesian*əsa—
8Proto-Oceanic*isa—

via English joseph

StepLanguageWordMeaning
1EnglishjosephA woman's riding habit worn in the 18th century...
2Hebrewיוֹסֵףshall add
Every word from Proto-Oceanic *isa →Every word from Proto-Austronesian *əsa →Every word from Proto-Germanic *sa →