From yasham; desolation -- let death seize (from the margin).
see HEBREW yasham
H3451. yeshimah
[יְשִׁימָה] noun feminine desolation, only intensive plural יְשִׁימוֺת Psalm 55:16 Kt (Qr מָוֶת יַשִּׁיא), so Ges Hup and others, compare proper name, of a location הישׁימות בית above; ᵐ5 Ew Ol Pe De Bae and others follow Qr, let death come deceitfully upon them, see נשׁא.