A primitive root; properly, to be broken up (with any violent action) i.e. (figuratively) to fear -- be grevious (only Isa. 15:4; the rest belong to ra'a').
KJV: And Heshbon shall cry, and Elealeh: their voice shall be heard even unto Jahaz: therefore the armed soldiers of Moab shall cry out; his life shall be grievous unto him.
NASB: Heshbon and Elealeh also cry out, Their voice is heard all the way to Jahaz; Therefore the armed men of Moab cry aloud; His soul trembles within him.