Lotharingian UK /ˌləʊ.θəˈɹɪn.dʒɪ.ən/US /ˌloʊ.θəˈɹɪn.dʒi.ən/adjective 1noun 1forms 1 adjective1 •Of or relating to Lotharingia. noun1 •A native or inhabitant of Lotharingia. formsLotharingians