Where does “Ἰωσήφ” come from?

Ἰωσήφ (Byzantine Greek) comes from Hebrew יוסף, from Hebrew הוֹסִיף — to add.

Ancestry of “Ἰωσήφ”, step by step

Ἰωσήφ traces back through two separate lines of ancestry.

via Hebrew יוסף

StepLanguageWordMeaning
1HebrewיוסףJoseph, husband of Mary, mother of Jesus
2Hebrewהוֹסִיףto add

via Hebrew יוֹסֵף

StepLanguageWordMeaning
1Hebrewיוֹסֵףshall add
Every word from Hebrew הוֹסִיף →Every word from Hebrew יוסף →