The Quran root خ ل و kh-l-w

وَإِذَا لَقُوا الَّذِينَ آمَنُوا قَالُوا آمَنَّا وَإِذَا خَلَوْا إِلَىٰ شَيَاطِينِهِمْ قَالُوا إِنَّا مَعَكُمْ إِنَّمَا نَحْنُ مُسْتَهْزِئُونَ ١٤

خَلَوْا khalaw · they are alone

And when they meet those who believe, they say, "We believe"; but when they are alone with their evil ones, they say, "Indeed, we are with you; we were only mockers." (Surah Al-Baqarah, 2:14)

وَإِذَا لَقُوا الَّذِينَ آمَنُوا قَالُوا آمَنَّا وَإِذَا خَلَا بَعْضُهُمْ إِلَىٰ بَعْضٍ قَالُوا أَتُحَدِّثُونَهُم بِمَا فَتَحَ اللَّهُ عَلَيْكُمْ لِيُحَاجُّوكُم بِهِ عِندَ رَبِّكُمْ أَفَلَا تَعْقِلُونَ ٧٦

خَلَا khalā · meet in private

And when they meet those who believe, they say, "We have believed"; but when they are alone with one another, they say, "Do you talk to them about what Allāh has revealed to you so they can argue with you about it before your Lord?" Then will you not reason? (Surah Al-Baqarah, 2:76)

فَإِذَا انسَلَخَ الْأَشْهُرُ الْحُرُمُ فَاقْتُلُوا الْمُشْرِكِينَ حَيْثُ وَجَدتُّمُوهُمْ وَخُذُوهُمْ وَاحْصُرُوهُمْ وَاقْعُدُوا لَهُمْ كُلَّ مَرْصَدٍ فَإِن تَابُوا وَأَقَامُوا الصَّلَاةَ وَآتَوُا الزَّكَاةَ فَخَلُّوا سَبِيلَهُمْ إِنَّ اللَّهَ غَفُورٌ رَّحِيمٌ ٥

فَخَلُّوا fakhallū · then leave

And when the inviolable months have passed, then kill the polytheists wherever you find them and capture them and besiege them and sit in wait for them at every place of ambush. But if they should repent, establish prayer, and give zakāh, let them [go] on their way. Indeed, Allāh is Forgiving and Merciful. (Surah At-Tawbah, 9:5)

كُلُوا وَاشْرَبُوا هَنِيئًا بِمَا أَسْلَفْتُمْ فِي الْأَيَّامِ الْخَالِيَةِ ٢٤

الْخَالِيَةِ l-khāliyati · past

[They will be told], "Eat and drink in satisfaction for what you put forth in the days past." (Surah Al-Haqqah, 69:24)

وَأَلْقَتْ مَا فِيهَا وَتَخَلَّتْ ٤

وَتَخَلَّتْ watakhallat · and becomes empty

And has cast out that within it and relinquished [it]. (Surah Al-Inshiqaq, 84:4)