Where does “smaraldus” come from?

smaraldus (Vulgar Latin) comes from Latin smaragdus, from Ancient Greek σμάραγδος, from Proto-Semitic bariq- — lightning.

Ancestry of “smaraldus”, step by step

Step	Language	Word	Meaning
1	Latin	smaragdus	emerald
2	Ancient Greek	σμάραγδος	emerald
3	Proto-Semitic	bariq-	lightning

Words derived from “smaraldus”

smeralt

Every word from Proto-Semitic bariq- →Every word from Ancient Greek σμάραγδος →Every word from Latin smaragdus →