SamTgJ Ex20:17 :וקעם עמה מרחיק ומשה נגש לערפלה‏ : the people were standing far off while Moses approached the cloud
See the entire entry for ngš vb. to gore

SamTgJ Ex20:17 : וקעם עמה מרחיק ומשה נגש לערפלה‏ : the people were standing far off while Moses approached the cloud
See the entire entry for ˁarpel, ˁarpellā n.f. cloud, fog