The Quran root خ س ر kh-s-r

الَّذِينَ يَنقُضُونَ عَهْدَ اللَّهِ مِن بَعْدِ مِيثَاقِهِ وَيَقْطَعُونَ مَا أَمَرَ اللَّهُ بِهِ أَن يُوصَلَ وَيُفْسِدُونَ فِي الْأَرْضِ أُولَٰئِكَ هُمُ الْخَاسِرُونَ ٢٧

الْخَاسِرُونَ l-khāsirūna · (are) the losers

Who break the covenant of Allāh after contracting it and sever that which Allāh has ordered to be joined and cause corruption on earth. It is those who are the losers. (Surah Al-Baqarah, 2:27)

ثُمَّ تَوَلَّيْتُم مِّن بَعْدِ ذَٰلِكَ فَلَوْلَا فَضْلُ اللَّهِ عَلَيْكُمْ وَرَحْمَتُهُ لَكُنتُم مِّنَ الْخَاسِرِينَ ٦٤

الْخَاسِرِينَ l-khāsirīna · the losers

Then you turned away after that. And if not for the favor of Allāh upon you and His mercy, you would have been among the losers. (Surah Al-Baqarah, 2:64)

وَلَأُضِلَّنَّهُمْ وَلَأُمَنِّيَنَّهُمْ وَلَآمُرَنَّهُمْ فَلَيُبَتِّكُنَّ آذَانَ الْأَنْعَامِ وَلَآمُرَنَّهُمْ فَلَيُغَيِّرُنَّ خَلْقَ اللَّهِ وَمَن يَتَّخِذِ الشَّيْطَانَ وَلِيًّا مِّن دُونِ اللَّهِ فَقَدْ خَسِرَ خُسْرَانًا مُّبِينًا ١١٩

خَسِرَ khasira · he (has) lost

And I will mislead them, and I will arouse in them [sinful] desires, and I will command them so they will slit the ears of cattle, and I will command them so they will change the creation of Allāh." And whoever takes Satan as an ally instead of Allāh has certainly sustained a clear loss. (Surah An-Nisa, 4:119)

لَا جَرَمَ أَنَّهُمْ فِي الْآخِرَةِ هُمُ الْأَخْسَرُونَ ٢٢

الْأَخْسَرُونَ l-akhsarūna · (will be) the greatest losers

Assuredly, it is they in the Hereafter who will be the greatest losers. (Surah Hud, 11:22)

وَمِنَ النَّاسِ مَن يَعْبُدُ اللَّهَ عَلَىٰ حَرْفٍ فَإِنْ أَصَابَهُ خَيْرٌ اطْمَأَنَّ بِهِ وَإِنْ أَصَابَتْهُ فِتْنَةٌ انقَلَبَ عَلَىٰ وَجْهِهِ خَسِرَ الدُّنْيَا وَالْآخِرَةَ ذَٰلِكَ هُوَ الْخُسْرَانُ الْمُبِينُ ١١

الْخُسْرَانُ l-khus'rānu · (is) the loss

And of the people is he who worships Allāh on an edge. If he is touched by good, he is reassured by it; but if he is struck by trial, he turns on his face [to unbelief]. He has lost [this] world and the Hereafter. That is what is the manifest loss. (Surah Al-Hajj, 22:11)

وَنُنَزِّلُ مِنَ الْقُرْآنِ مَا هُوَ شِفَاءٌ وَرَحْمَةٌ لِّلْمُؤْمِنِينَ وَلَا يَزِيدُ الظَّالِمِينَ إِلَّا خَسَارًا ٨٢

خَسَارًا khasāran · (in) loss

And We send down of the Qur’ān that which is healing and mercy for the believers, but it does not increase the wrongdoers except in loss. (Surah Al-Isra, 17:82)