From Sanskrit प्रस्तर (prastara). Cognate with Assamese পাত্থৰ (patthor) / পাথৰ (pathor), Bengali পাথর (pathor), Hindustani पत्थर (patthar) / پتھر.
ꠙꠣꠔ꠆ꠕꠞ • (fattór)