The root خ ش ع (kh-sh-ʿ) in the Quran

وَٱسْتَعِينُوا۟ بِٱلصَّبْرِ وَٱلصَّلَوٰةِ وَإِنَّهَا لَكَبِيرَةٌ إِلَّا عَلَى ٱلْخَٰشِعِينَ ۝٤٥

And seek help through patience and prayer; and indeed, it is difficult except for the humbly submissive [to Allāh]

وَإِنَّ مِنْ أَهْلِ ٱلْكِتَٰبِ لَمَن يُؤْمِنُ بِٱللَّهِ وَمَآ أُنزِلَ إِلَيْكُمْ وَمَآ أُنزِلَ إِلَيْهِمْ خَٰشِعِينَ لِلَّهِ لَا يَشْتَرُونَ بِـَٔايَٰتِ ٱللَّهِ ثَمَنًا قَلِيلًا أُو۟لَٰٓئِكَ لَهُمْ أَجْرُهُمْ عِندَ رَبِّهِمْ إِنَّ ٱللَّهَ سَرِيعُ ٱلْحِسَابِ ۝١٩٩

And indeed, among the People of the Scripture are those who believe in Allāh and what was revealed to you and what was revealed to them, [being] humbly submissive to Allāh. They do not exchange the verses of Allāh for a small price. Those will have their reward with their Lord. Indeed, Allāh is swift in account.

وَيَخِرُّونَ لِلْأَذْقَانِ يَبْكُونَ وَيَزِيدُهُمْ خُشُوعًا ۝١٠٩

And they fall upon their faces weeping, and it [i.e., the Qur’ān] increases them in humble submission.

يَوْمَئِذٍ يَتَّبِعُونَ ٱلدَّاعِىَ لَا عِوَجَ لَهُۥ وَخَشَعَتِ ٱلْأَصْوَاتُ لِلرَّحْمَٰنِ فَلَا تَسْمَعُ إِلَّا هَمْسًا ۝١٠٨

That Day, they [i.e., everyone] will follow [the call of] the Caller [with] no deviation therefrom, and [all] voices will be stilled before the Most Merciful, so you will not hear except a whisper [of footsteps].

فَٱسْتَجَبْنَا لَهُۥ وَوَهَبْنَا لَهُۥ يَحْيَىٰ وَأَصْلَحْنَا لَهُۥ زَوْجَهُۥٓ إِنَّهُمْ كَانُوا۟ يُسَٰرِعُونَ فِى ٱلْخَيْرَٰتِ وَيَدْعُونَنَا رَغَبًا وَرَهَبًا وَكَانُوا۟ لَنَا خَٰشِعِينَ ۝٩٠

So We responded to him, and We gave to him John, and amended for him his wife. Indeed, they used to hasten to good deeds and supplicate Us in hope and fear, and they were to Us humbly submissive.

ٱلَّذِينَ هُمْ فِى صَلَاتِهِمْ خَٰشِعُونَ ۝٢

They who are during their prayer humbly intent

إِنَّ ٱلْمُسْلِمِينَ وَٱلْمُسْلِمَٰتِ وَٱلْمُؤْمِنِينَ وَٱلْمُؤْمِنَٰتِ وَٱلْقَٰنِتِينَ وَٱلْقَٰنِتَٰتِ وَٱلصَّٰدِقِينَ وَٱلصَّٰدِقَٰتِ وَٱلصَّٰبِرِينَ وَٱلصَّٰبِرَٰتِ وَٱلْخَٰشِعِينَ وَٱلْخَٰشِعَٰتِ وَٱلْمُتَصَدِّقِينَ وَٱلْمُتَصَدِّقَٰتِ وَٱلصَّٰٓئِمِينَ وَٱلصَّٰٓئِمَٰتِ وَٱلْحَٰفِظِينَ فُرُوجَهُمْ وَٱلْحَٰفِظَٰتِ وَٱلذَّٰكِرِينَ ٱللَّهَ كَثِيرًا وَٱلذَّٰكِرَٰتِ أَعَدَّ ٱللَّهُ لَهُم مَّغْفِرَةً وَأَجْرًا عَظِيمًا ۝٣٥

Indeed, the Muslim men and Muslim women, the believing men and believing women, the obedient men and obedient women, the truthful men and truthful women, the patient men and patient women, the humble men and humble women, the charitable men and charitable women, the fasting men and fasting women, the men who guard their private parts and the women who do so, and the men who remember Allāh often and the women who do so - for them Allāh has prepared forgiveness and a great reward.

وَمِنْ ءَايَٰتِهِۦٓ أَنَّكَ تَرَى ٱلْأَرْضَ خَٰشِعَةً فَإِذَآ أَنزَلْنَا عَلَيْهَا ٱلْمَآءَ ٱهْتَزَّتْ وَرَبَتْ إِنَّ ٱلَّذِىٓ أَحْيَاهَا لَمُحْىِ ٱلْمَوْتَىٰٓ إِنَّهُۥ عَلَىٰ كُلِّ شَىْءٍ قَدِيرٌ ۝٣٩

And of His signs is that you see the earth stilled, but when We send down upon it rain, it quivers and grows. Indeed, He who has given it life is the Giver of Life to the dead. Indeed, He is over all things competent.

وَتَرَىٰهُمْ يُعْرَضُونَ عَلَيْهَا خَٰشِعِينَ مِنَ ٱلذُّلِّ يَنظُرُونَ مِن طَرْفٍ خَفِىٍّ وَقَالَ ٱلَّذِينَ ءَامَنُوٓا۟ إِنَّ ٱلْخَٰسِرِينَ ٱلَّذِينَ خَسِرُوٓا۟ أَنفُسَهُمْ وَأَهْلِيهِمْ يَوْمَ ٱلْقِيَٰمَةِ أَلَآ إِنَّ ٱلظَّٰلِمِينَ فِى عَذَابٍ مُّقِيمٍ ۝٤٥

And you will see them being exposed to it [i.e., the Fire], humbled from humiliation, looking from [behind] a covert glance. And those who had believed will say, "Indeed, the [true] losers are the ones who lost themselves and their families on the Day of Resurrection. Unquestionably, the wrongdoers are in an enduring punishment."

خُشَّعًا أَبْصَٰرُهُمْ يَخْرُجُونَ مِنَ ٱلْأَجْدَاثِ كَأَنَّهُمْ جَرَادٌ مُّنتَشِرٌ ۝٧

Their eyes humbled, they will emerge from the graves as if they were locusts spreading,

أَلَمْ يَأْنِ لِلَّذِينَ ءَامَنُوٓا۟ أَن تَخْشَعَ قُلُوبُهُمْ لِذِكْرِ ٱللَّهِ وَمَا نَزَلَ مِنَ ٱلْحَقِّ وَلَا يَكُونُوا۟ كَٱلَّذِينَ أُوتُوا۟ ٱلْكِتَٰبَ مِن قَبْلُ فَطَالَ عَلَيْهِمُ ٱلْأَمَدُ فَقَسَتْ قُلُوبُهُمْ وَكَثِيرٌ مِّنْهُمْ فَٰسِقُونَ ۝١٦

Has the time not come for those who have believed that their hearts should become humbly submissive at the remembrance of Allāh and what has come down of the truth? And let them not be like those who were given the Scripture before, and a long period passed over them, so their hearts hardened; and many of them are defiantly disobedient.

لَوْ أَنزَلْنَا هَٰذَا ٱلْقُرْءَانَ عَلَىٰ جَبَلٍ لَّرَأَيْتَهُۥ خَٰشِعًا مُّتَصَدِّعًا مِّنْ خَشْيَةِ ٱللَّهِ وَتِلْكَ ٱلْأَمْثَٰلُ نَضْرِبُهَا لِلنَّاسِ لَعَلَّهُمْ يَتَفَكَّرُونَ ۝٢١

If We had sent down this Qur’ān upon a mountain, you would have seen it humbled and splitting from fear of Allāh. And these examples We present to the people that perhaps they will give thought.

خَٰشِعَةً أَبْصَٰرُهُمْ تَرْهَقُهُمْ ذِلَّةٌ وَقَدْ كَانُوا۟ يُدْعَوْنَ إِلَى ٱلسُّجُودِ وَهُمْ سَٰلِمُونَ ۝٤٣

Their eyes humbled, humiliation will cover them. And they used to be invited to prostration while they were sound.

خَٰشِعَةً أَبْصَٰرُهُمْ تَرْهَقُهُمْ ذِلَّةٌ ذَٰلِكَ ٱلْيَوْمُ ٱلَّذِى كَانُوا۟ يُوعَدُونَ ۝٤٤

Their eyes humbled, humiliation will cover them. That is the Day which they had been promised.

أَبْصَٰرُهَا خَٰشِعَةٌ ۝٩

Their eyes humbled.

وُجُوهٌ يَوْمَئِذٍ خَٰشِعَةٌ ۝٢

[Some] faces, that Day, will be humbled,