Kitab Muhit al-Muhit. TWO VOLUMES.

"Lebanon was the centre of Arabic lexicography in the nineteenth century. In 1867-70 the celebrated dictionary "Muhit al-Muhit" by the distinguished scholar Butrus al-Bustani was published, compiled in the modern arrangement. In the introduction the author stated that the Arab world needed a dictionary so arranged, and the "Qamus" [of Fairuzabadi], for all his popularity was hard to use because of its rhyme arrangement. He therefore took the material of the "Qamus", and supplemented it from other lexicographers, using post-classical authors for some of his examples.
This dictionary was highly praised by Arab scholars, and its fame eclipsed that of another dictionary written during the same period "Aqrab al-Mawarid" by Sa'id  al-Sartuni". (John A. Haywood "Arabic Lexicography". p. 109].