Or (prolonged) Gashmuw {gash-moo'}; the same as geshem; Geshem or Gashmu, an Arabian -- Geshem, Gashmu.
see HEBREW geshem
H1654. Geshem
or Gashmu I. גֶּ֫שֶׁם proper name, masculine an opponent of Nehemiah Nehemiah 2:19; 6:1 (in both called הָעַרְבִּי); 6:2; also גַּשְׁמוּ 6:6; וּ as in Nabataean proper name compare Nö in EutNab 73.
גַּשְׁמוּ proper name, see I. גֶּשֶׁם. above