Where does “گوهر” come from?

گوهر (Persian) comes from Middle Persian gwhl, from Old Persian gauθra.

گوهر (Persian): jewel; gem; pearl

Definitions

Step	Language	Word	Meaning
1	Middle Persian	gwhl	substance, essence, nature; jewel; stock, lineage
2	Old Persian	gauθra	—

گوهر — Etymology, Origin & Word History | Etymology Explorer