Nissi (Nissim) ben Noah was a Karaite scholar and writer. Since there is no certain information about his life, the questions of where and when he lived have been widely disputed. Some scholars have dated him to the eighth century (Pinsker and  Graetz), others between the tenth and eleventh centuries (Steinschneider, Harkavy, Nemoy), or even between the mid-twelfth and the late thirteenth century (Ankori). Yet, taking into account that Nissi made use of David ben Abraham al-Fāsī’s dictionary, and that Judah Hadassi knew of him, it is plausible to assume that he was active no…