Meaning
connected with histemi, "to stand," i.e., that which stands out, is used of mourners in smiting the "breast," Luk 18:13, Luk 23:48; of John in reclining on the "breast" of Christ, Joh 13:25, Joh 21:20; of the "breasts" of the angels in Rev 15:6.
<2,,3149, mastos>
used in the plural, "paps," Luk 11:27, Luk 23:29, Rev 1:13, AV, is preferably rendered "breasts," in the RV.