Where does “Shem” come from?

Shem derives from Ancient Greek Σημ, from Hebrew שֵׁם, from Proto-Semitic šim-, ultimately from Proto-Afroasiatic sim-.

Ancestry of “Shem”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Σήμ	—
2	Hebrew	שֵׁם	Shem; name; name of
3	Hebrew	שמואל	—
4	Hebrew	שְׁמוּאֵל	—