TgJ Is13:18 :וְקַשתָתְהוֹן עוּלֵימִין יְבַזְעָן וְעַל וְלַד מְעִין לָא יְרַחְמוּן‏ : their bows shall rip up youths and they will not be merciful to a womb's fetus
See the entire entry for wld n.m. fetus, newborn