Ambiani
Could not find Ambianis in Logeion dictionaries.
Ambianis Proper-name noun: masculine dative plural, Proper-name noun: masculine ablative plural of Ambiani
Ambiānī, ōrum, m., ein belgisches Küstenvolk im jetzigen Depart. der Somme, mit der Hauptstadt Samarobriva (j. Amiens), Caes. b.G. 2, 4, 8; 2, 15, 2 u. 7, 75, 4.
Ambĭānī, (14) ōrum, m. , peuple de la Belgique : Cæs. G. 2, 4, 8, etc.
Ambiāni
A Belgic tribe subdued by Caesar in B.C. 57. Their chief town was Samarobriva or Ambiani (Amiens).