Where does “અર્ધવર્તુળ” come from?

અર્ધવર્તુળ (Gujarati) comes from Gujarati અર્ધ-.

Ancestry of “અર્ધવર્તુળ”, step by step

Step	Language	Word	Meaning
1	Gujarati	અર્ધ-	—

અર્ધવર્તુળ — Etymology, Origin & Word History | Etymology Explorer