Following are a number of back-translations of Mark 9:42:

• Uma: “‘But who[ever] causes one small child like this child to fall with the result that they no longer believe in me, God’s punishment on that person will indeed be big. It would be far better for a big sharpening stone to be fastened to his neck and him be thrown into the sea.” (Source: Uma Back Translation)
• Yakan: “‘But whoever causes-to-sin one little child like this that believes in me, it would have been better for him to have a big stone hung around his neck and be thrown into the sea, just so that he would not be able to influence to sin.” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “But if there is a person who by means of him, one of these children is successfully tempted, it is better for that person if a large grindstone is tied to his neck and he is thrown into the middle of the sea rather than through him one of these children is successfully tempted.” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “‘Whoever tempts so-that even one of these lowest people who believe in me will sin, it would be better if his neck were tied-to with a heavy stone and then he were thrown into the ocean than his continuing-with his temptation.” (Source: Kankanaey Back Translation)
• Tagbanwa: “But well, whoever will cause to fall (into sin, fig.) a humble one like this child who believes in me, it would really be better if he were just weighted with a large milling stone and just dropped into the middle of the ocean. (That would be) better than that he would go through with such big evil.” (Source: Tagbanwa Back Translation)
• Choapan Zapotec: “‘If people want to direct children who believe in me to not follow me anymore, there would be less penalty for them if, before they do what they want, people were to tie heavy grindstones around their necks and throw them into a river.'” (Source: B. Moore / G. Turner in Notes on Translation 1967, p. 1ff.)