Semitic languages
The similarity of the Hebrew, Arabic and Aramaic languages was accepted by Jewish and Islamic scholars since medieval times. The languages were familiar to Western European scholars due to historical contact with neighbouring Near Eastern countries and through Biblical studies, and a comparative analysis of Hebrew, Arabic, and Aramaic was published in Latin in 1538 by Guillaume Postel. Almost two centuries later, Hiob Ludolf described the similarities between these three languages and the Ethiopian Semitic languages. However, neither scholar named this grouping as "Semitic".
Judeo-Tripolitanian Arabic
Judeo-Tripolitanian Arabic (also known as Tripolitanian Judeo-Arabic, Jewish Tripolitanian-Libyan Arabic, Tripolita'it, Yudi) is a variety of Arabic spoken by Jews formerly living in Libya. Judeo-Tripolitanian Arabic differs from standard Libyan Arabic in that it closely resembles the original dialect of the sedentary population, whereas much of Libya's population now speaks Bedouin-influenced varieties of Arabic. A reference grammar is available.