Easton's Bible Dictionary (1897)
Blast, a city of Moab which was occupied by the Amorites (Num. 21:30).
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
NO'PHAH (blast), a town of Moab. Num 21:30. Ewald locates Nobah near Heshbon, and identifies it with Nophah. Canon Cook suggests that Nophah may be identical with Arneibah miles southeast of Medeba.
Hitchcock's Bible Names (1869)
fearful; binding