Judeo-Berber (Berber languages: Tamazight Tudayt, Hebrew: ברברית יהודית) is any of several hybrid Berber varieties traditionally spoken as a second language in Jewish communities of central and southern Morocco, and perhaps earlier in Algeria. Judeo-Berber is (or was) a contact language; the first language of speakers was Judeo-Arabic. (There were also Jews who spoke Berber as their first language, but not a distinct Jewish variety.) Speakers emigrated to Israel in the 1950s and 1960s. While mutually comprehensible with the Tamazight spoken by most inhabitants of the area (Galand-Pernet et al. 1970:14), these varieties are distinguished by the use of Hebrew loanwords and the pronunciation of š as s (as in many Jewish Moroccan Arabic dialects).
L2 speakers: 2,000 cited 1992)
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Communities where Jews in Morocco spoke Judeo-Berber included : Tinerhir, Ouijjane, Asaka, Imini, Draa valley, Demnate and Ait Bou Oulli in the Tamazight-speaking Middle Atlas and High Atlas and Oufrane, Tiznit and Illigh in the Tasheliyt-speaking Souss valley (Galand-Pernet et al. 1970:2). Jews were living among tribal Berbers, often in the same villages and practiced old tribal Berber protection relationships.
Almost all speakers of Judeo-Berber left Morocco in the years following its independence, and their children have mainly grown up speaking other languages. In 1992, about 2,000 speakers remained, mainly in Israel; all are at least bilingual in Judeo-Arabic.
Judeo-Berber is characterized by the following phonetic phenomena: 
- Centralized pronunciation of /i u/ as [ɨ ʉ]
- Neutralization of the distinction between /s ʃ/, especially among monolingual speakers
- Delabialization of lablialized velars (/kʷ gʷ xʷ ɣʷ/), e.g. nəkkʷni/nukkni > nəkkni 'us, we'
- Insertion of epenthetic [ə] to break up consonant clusters
- Frequent diphthong insertion, as in Judeo-Arabic
- Some varieties have q > kʲ and dˤ > tˤ, as in the local Arabic dialects
- In the eastern Sous Valley region, /l/ > [n] in both Judeo-Berber and Arabic
Apart from its daily use, Judeo-Berber was used for orally explaining religious texts, and only occasionally written, using Hebrew characters; a manuscript Pesah Haggadah written in Judeo-Berber has been reprinted (Galand-Pernet et al. 1970.) A few prayers, like the Benedictions over the Torah, were recited in Berber.
Taken from Galand-Pernet et al. 1970:121 (itself from a manuscript from Tinghir):
- יִכְדַמְן אַיְיִנַגָא יפּרעו גְמַצָר. יִשוֹפִגַג רבי נּג דְיְנָג שוֹפוֹש נִדְרע שוֹפוֹש יִכיווֹאַנ
- ixəddamn ay n-ga i pərʿu g° maṣər. i-ss-ufġ aġ əṛbbi ənnəġ dinnaġ s ufus ən ddrʿ, s ufus ikuwan.
- Rough word-for-word translation: servants what we-were for Pharaoh in Egypt. he-cause-leave us God our there with arm of might, with arm strong.
- Servants of Pharaoh is what we were in Egypt. Our God brought us out thence with a mighty arm, with a strong arm.
- Chetrit (2016) "Jewish Berber", in Kahn & Rubin (eds.) Handbook of Jewish Languages, Brill
- Judeo-Berber at Ethnologue (18th ed., 2015)
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Judeo-Berber". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
- "Jews and Berbers" (PDF). Archived from the original (PDF) on 2008-12-19. (72.8 KB)
- P. Galand-Pernet & Haim Zafrani. Une version berbère de la Haggadah de Pesaḥ: Texte de Tinrhir du Todrha (Maroc). Compres rendus du G.L.E.C.S. Supplement I. 1970. (in French)
- Joseph Chetrit. "Jewish Berber," Handbook of Jewish Languages, ed. Lily Kahn & Aaron D. Rubin. Leiden: Brill. 2016. Pages 118-129.