Where does “Isus” come from?

Isus (Serbo-Croatian) comes from Old Church Slavonic исоусъ, from Ancient Greek Ἰησοῦς, from Aramaic ישוע, from Hebrew ישוע, from Hebrew יהושע, from Hebrew הוֹשֵׁעַ — Salvation; Hosea.

Ancestry of “Isus”, step by step

Step	Language	Word	Meaning
1	Old Church Slavonic	исоусъ	—
2	Ancient Greek	Ἰησοῦς	Jesus
3	Aramaic	ישוע	—
4	Hebrew	ישוע	—
5	Hebrew	יהושע	Joshua
6	Hebrew	הוֹשֵׁעַ	Salvation; Hosea

Every word from Hebrew הוֹשֵׁעַ →

Isus — Etymology, Origin & Word History | Etymology Explorer