In addition, Mordecai wrote: Sefer Ma'amar Mordechai, a commentary on the Mibhar of Aaron ben Joseph; Derek ha-Yam, dissertation on a passage of the Mibhar to Genesis ix.
21; Kelalim Yafim, an elementary Hebrew grammar; Yad Adonai, the subject of which is not known; Lebush Malkhut, on the differences between the Rabbinites and the Karaites; liturgical poems, some of which have been inserted in the Karaite ritual.