Where does “sīsamum” come from?

sīsamum (Latin) comes from Ancient Greek Σήσαμον, from Aramaic שושמא, from Aramaic שומשומא, from Akkadian šamaššammum, from Akkadian šamnum, from Proto-Semitic *šamn-.

Ancestry of “sīsamum”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Σήσαμον	—
2	Aramaic	שושמא	—
3	Aramaic	שומשומא	—
4	Akkadian	šamaššammum	—
5	Akkadian	šamnum	—
6	Proto-Semitic	*šamn-	—

Every word from Proto-Semitic *šamn- →