Ammah - a cubit, the name of a hill which Joab and Abishai reached as the sun went down, when they were in pursuit of Abner (2 Sam. 2:24). It lay to the east of Gibeon.
This article incorporates text from a publication now in the public domain: Easton, Matthew George (1897). "article name needed". Easton's Bible Dictionary (New and revised ed.). T. Nelson and Sons.