Following are a number of back-translations as well as a sample translation for translators of 1 Samuel 15:33:

• Kupsabiny: “But Samuel told Agag that, ‘Because you have killed so many people and you have made women to stay without children, I will also kill you so that your mother is left without a child.’ When Samuel finished talking like that, he cut Agag to death before the altar in Gilgal.” (Source: Kupsabiny Back Translation)
• Newari: “But Samuel said, "Just as your sword has made many women childless, so now your mother will also be childless." After that Samuel killed Agag before the LORD in Gilgal.” (Source: Newari Back Translation)
• Hiligaynon: “But Samuel said, ‘Just-as many mothers have-lost children because of your (sing.) killing, I will-kill you (sing.) also so-that your (sing.) mother will- also -lose a child.’ So Samuel killed Agag in the presence of the LORD at Gilgal.” (Source: Hiligaynon Back Translation)
• English: “But Samuel said to him,
  ‘You have killed the sons of many women with your sword,
  so now your mother will no longer have a son.’
  And Samuel cut Agag into pieces with his sword, there at Gilgal, in the presence of Yahweh.” (Source: Translation for Translators)