Meaning

noun a ruling on a point of Islamic law that is given by a recognized authority

originThe noun is borrowed from Arabic فَتْوَى (fatwā, “formal legal opinion”), the verbal noun of أَفْتَى (ʔaftā, “to deliver a formal opinion”) (whence مُفْتٍ (muftin, “mufti”), the active participle of the same verb: see mufti). The forms fetwa, fetwah are derived from Italian fetfà (obsolete), and directly from its etymon Ottoman Turkish فتوی (fetva) (modern Turkish fetva), from Arabic فَتْوَى…

Etymology from Wiktionary, CC BY-SA 3.0