Lewis & Short

Ălĕmanni (Ălămanni and Ălă-mani), ōrum, m. [= Alle-Männer],

  1. I. the Alemanni, German tribes who (as their name indicates) formed a confederation on the Upper Rhine and Danube, from whom the Gauls transferred the name to the whole German nation; cf. Aur. Vict. Caes. 21; Claud. II. Cons. Stil. 17; Sid. 5, 375.
  2. II. Derivv.,
      1. 1. Ălĕmannĭa (Ălăm-), ae, f. [cf. Fr. Allemagne; Ital. Alemagna], the country of the Alemanni, Claud. I. Cons. Stil. 234.
      2. 2. Ălĕmannĭcus (Ălăm-), a, um, adj., Alemannic, pertaining to the Alemanni: tentoria, Amm. 27, 2.
        Hence, a surname of Caracalla, on account of his victory over the Alemanni, Spart. Carac. 10.
      3. 3. Ălĕmannus (Ălăm-), i, m., a surname of the emperor Gratian, on account of his victory over the Alemanni, Aur. Vict. Epit. 47.