Lewis & Short

Mauri, ōrum, m. (Μαῦροι), the Moors, Mauritanians, the inhabitants of Mauritania: proxime Hispaniam Mauri sunt, Sall. J. 18, 10 sqq.; Plin. 5, 2, 1, § 17; 13, 15, 29, § 91; Liv. 21, 22, 3; Mel. 1, 4, 4.
In sing.: Maurus, i, m., a Moor, Juv. 11, 125; Luc. 4, 678.
Hence,

  1. A. Maurus, a, um, adj., = Μαῦρος, of or belonging to the Moors, Moorish, Mauritanian; also poet. for African: Maurae manus, i. e. Poenorum arma, Ov. F. 6, 213: angues, Hor. C. 3, 10, 18: jacula, id. ib. 1, 22, 2: Oceanus, Juv. 10, 148: unda, i. e. mare Africum, Hor. C. 2, 6, 3: silvae filia Maurae, i. e. e citro facta, Mart. 14, 90, 1: postes, i. e. citrini, Stat. S. 1, 3, 35.
  2. B. Maurĭcus, a, um, adj., Moorish: Maurica planta, Coripp. Joann. 2, 137.
    Subst.: Maurĭcus, i, m., a Roman surname, Mart. 5, 28, 5.
    Adv.: Mau-rĭcē, like a Moor, Varr. ap. Gell. 2, 25, 8.
    And Maurĭcātim, as or like a Moor: Mauricatim scire, Laber. ap. Charis. p. 184 P. (Com. Rel. v. 16 Rib.).
  3. C. Maurītā-nĭa (Maurēt-), ae, f., = Μαυριτανία, a country of Africa, on the Mediterranean, between the Atlantic Ocean and Numidia, the modern Fez and Morocco; having been divided into M. Cæsariensis and Tingitana, it was called also in the plur. Mauritaniae, Caes. B. C. 1, 6; 39; Cic. Sull. 20, 56; Tac. H. 1, 11; 2, 58; 59; Plin. 5, 1, 1, § 2.
    Hence, Maurītānĭcus, a, um, adj., of or belonging to Mauritania: exercitus, on a coin of Hadrian, in Eckhel. D. N. V. t. 6, p. 498.
  4. D. Maurūsĭa, ae, f., = Μαυρουσία, the Greek name of Mauritania, Vitr. 8, 2, 6.
    Hence,
      1. a. Maurūsĭăcus, a, um, adj., Moorish, Mauritanian: citrus, Mart. 12, 66, 6.
      2. b. Maurūsĭus, a, um, adj., = Μαυρούσιος, Maurusian, Mauritanian, African: gens, Verg. A. 4, 206: pubes, Sil. 11, 414.
        Subst.: Maurūsĭi, ōrum, m., the Mauritanians, Liv. 24, 49.