The root ج ح د (j-ḥ-d) in the Quran

قَدْ نَعْلَمُ إِنَّهُۥ لَيَحْزُنُكَ ٱلَّذِى يَقُولُونَ فَإِنَّهُمْ لَا يُكَذِّبُونَكَ وَلَٰكِنَّ ٱلظَّٰلِمِينَ بِـَٔايَٰتِ ٱللَّهِ يَجْحَدُونَ ۝٣٣

We know that you, [O Muḥammad], are saddened by what they say. And indeed, they do not call you untruthful, but it is the verses of Allāh that the wrongdoers reject.

ٱلَّذِينَ ٱتَّخَذُوا۟ دِينَهُمْ لَهْوًا وَلَعِبًا وَغَرَّتْهُمُ ٱلْحَيَوٰةُ ٱلدُّنْيَا فَٱلْيَوْمَ نَنسَىٰهُمْ كَمَا نَسُوا۟ لِقَآءَ يَوْمِهِمْ هَٰذَا وَمَا كَانُوا۟ بِـَٔايَٰتِنَا يَجْحَدُونَ ۝٥١

Who took their religion as distraction and amusement and whom the worldly life deluded." So today We will forget them just as they forgot the meeting of this Day of theirs and for having rejected Our verses.

وَتِلْكَ عَادٌ جَحَدُوا۟ بِـَٔايَٰتِ رَبِّهِمْ وَعَصَوْا۟ رُسُلَهُۥ وَٱتَّبَعُوٓا۟ أَمْرَ كُلِّ جَبَّارٍ عَنِيدٍ ۝٥٩

And that was ʿAad, who rejected the signs of their Lord and disobeyed His messengers and followed the order of every obstinate tyrant.

وَٱللَّهُ فَضَّلَ بَعْضَكُمْ عَلَىٰ بَعْضٍ فِى ٱلرِّزْقِ فَمَا ٱلَّذِينَ فُضِّلُوا۟ بِرَآدِّى رِزْقِهِمْ عَلَىٰ مَا مَلَكَتْ أَيْمَٰنُهُمْ فَهُمْ فِيهِ سَوَآءٌ أَفَبِنِعْمَةِ ٱللَّهِ يَجْحَدُونَ ۝٧١

And Allāh has favored some of you over others in provision. But those who were favored [i.e., given more] would not hand over their provision to those whom their right hands possess [i.e., slaves] so they would be equal to them therein. Then is it the favor of Allāh they reject?

وَجَحَدُوا۟ بِهَا وَٱسْتَيْقَنَتْهَآ أَنفُسُهُمْ ظُلْمًا وَعُلُوًّا فَٱنظُرْ كَيْفَ كَانَ عَٰقِبَةُ ٱلْمُفْسِدِينَ ۝١٤

And they rejected them, while their [inner] selves were convinced thereof, out of injustice and haughtiness. So see how was the end of the corrupters.

وَكَذَٰلِكَ أَنزَلْنَآ إِلَيْكَ ٱلْكِتَٰبَ فَٱلَّذِينَ ءَاتَيْنَٰهُمُ ٱلْكِتَٰبَ يُؤْمِنُونَ بِهِۦ وَمِنْ هَٰٓؤُلَآءِ مَن يُؤْمِنُ بِهِۦ وَمَا يَجْحَدُ بِـَٔايَٰتِنَآ إِلَّا ٱلْكَٰفِرُونَ ۝٤٧

And thus We have sent down to you the Book [i.e., the Qur’ān]. And those to whom We [previously] gave the Scripture believe in it. And among these [people of Makkah] are those who believe in it. And none reject Our verses except the disbelievers.

بَلْ هُوَ ءَايَٰتٌۢ بَيِّنَٰتٌ فِى صُدُورِ ٱلَّذِينَ أُوتُوا۟ ٱلْعِلْمَ وَمَا يَجْحَدُ بِـَٔايَٰتِنَآ إِلَّا ٱلظَّٰلِمُونَ ۝٤٩

Rather, it [i.e., the Qur’ān] is distinct verses [preserved] within the breasts of those who have been given knowledge. And none reject Our verses except the wrongdoers.

وَإِذَا غَشِيَهُم مَّوْجٌ كَٱلظُّلَلِ دَعَوُا۟ ٱللَّهَ مُخْلِصِينَ لَهُ ٱلدِّينَ فَلَمَّا نَجَّىٰهُمْ إِلَى ٱلْبَرِّ فَمِنْهُم مُّقْتَصِدٌ وَمَا يَجْحَدُ بِـَٔايَٰتِنَآ إِلَّا كُلُّ خَتَّارٍ كَفُورٍ ۝٣٢

And when waves come over them like canopies, they supplicate Allāh, sincere to Him in religion [i.e., faith]. But when He delivers them to the land, there are [some] of them who are moderate [in faith]. And none rejects Our signs except everyone treacherous and ungrateful.

كَذَٰلِكَ يُؤْفَكُ ٱلَّذِينَ كَانُوا۟ بِـَٔايَٰتِ ٱللَّهِ يَجْحَدُونَ ۝٦٣

Thus were those [before you] deluded who were rejecting the signs of Allāh.

فَأَمَّا عَادٌ فَٱسْتَكْبَرُوا۟ فِى ٱلْأَرْضِ بِغَيْرِ ٱلْحَقِّ وَقَالُوا۟ مَنْ أَشَدُّ مِنَّا قُوَّةً أَوَلَمْ يَرَوْا۟ أَنَّ ٱللَّهَ ٱلَّذِى خَلَقَهُمْ هُوَ أَشَدُّ مِنْهُمْ قُوَّةً وَكَانُوا۟ بِـَٔايَٰتِنَا يَجْحَدُونَ ۝١٥

As for ʿAad, they were arrogant upon the earth without right and said, "Who is greater than us in strength?" Did they not consider that Allāh who created them was greater than them in strength? But they were rejecting Our signs.

ذَٰلِكَ جَزَآءُ أَعْدَآءِ ٱللَّهِ ٱلنَّارُ لَهُمْ فِيهَا دَارُ ٱلْخُلْدِ جَزَآءًۢ بِمَا كَانُوا۟ بِـَٔايَٰتِنَا يَجْحَدُونَ ۝٢٨

That is the recompense of the enemies of Allāh - the Fire. For them therein is the home of eternity as recompense for what they, of Our verses, were rejecting.

وَلَقَدْ مَكَّنَّٰهُمْ فِيمَآ إِن مَّكَّنَّٰكُمْ فِيهِ وَجَعَلْنَا لَهُمْ سَمْعًا وَأَبْصَٰرًا وَأَفْـِٔدَةً فَمَآ أَغْنَىٰ عَنْهُمْ سَمْعُهُمْ وَلَآ أَبْصَٰرُهُمْ وَلَآ أَفْـِٔدَتُهُم مِّن شَىْءٍ إِذْ كَانُوا۟ يَجْحَدُونَ بِـَٔايَٰتِ ٱللَّهِ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ ۝٢٦

And We had certainly established them in such as We have not established you, and We made for them hearing and vision and hearts [i.e., intellect]. But their hearing and vision and hearts availed them not from anything [of the punishment] when they were [continually] rejecting the signs of Allāh; and they were enveloped by what they used to ridicule.