2 Samuel 2:23

The fifth rib . This rendering here and in other places arises from the derivation of the word from the numeral five, but this notion has long been abandoned, and the word is now known to be formed from a verb signifying "to be fat or stout." Really it means the abdomen, and is so translated in the LXX . and Vulgate, while the Syriac gives only the general sense, and renders "the breast." In the same place; Hebrew, under him; that is, immediately. So violent was the blow that Asahel dropped down dead without a struggle. So tragic was his fate, and so great the affection of David's men for the young warrior, that the pursuit ceased, and all, as they came up, remained standing by the side of the corpse.