Where does “هندسه” come from?

هندسه (Persian) comes from Arabic هَنْدَسَة, from Arabic هَنْدَزَة, from Arabic هَنْدَاز, from Middle Persian handʾc-.

هندسه (Persian): geometry

Definitions

Step	Language	Word	Meaning
1	Arabic	هَنْدَسَة	geometry, architecture, engineering; engineering
2	Arabic	هَنْدَزَة	—
3	Arabic	هَنْدَاز	—
4	Middle Persian	handʾc-	—

هندسه — Etymology, Origin & Word History | Etymology Explorer