• غَيْث
• يُغَاثُ

Appears 4 times in the Quran.

1. 12:49 ثُمَّ يَأْتِى مِنۢ بَعْدِ ذَٰلِكَ عَامٌ فِيهِ يُغَاثُ ٱلنَّاسُ وَفِيهِ يَعْصِرُونَ

   Then there will come after that a year in which people shall have rain and in which they shall press (grapes).
   

2. 31:34 إِنَّ ٱللَّهَ عِندَهُۥ عِلْمُ ٱلسَّاعَةِ وَيُنَزِّلُ ٱلْغَيْثَ وَيَعْلَمُ مَا فِى ٱلْأَرْحَامِ وَمَا تَدْرِى نَفْسٌ مَّاذَا تَكْسِبُ غَدًا وَمَا تَدْرِى نَفْسٌۢ بِأَىِّ أَرْضٍ تَمُوتُ إِنَّ ٱللَّهَ عَلِيمٌ خَبِيرٌۢ

   Surely Allah is He with Whom is the knowledge of the hour, and He sends down the rain and He knows what is in the wombs; and no one knows what he shall earn on the morrow; and no one knows in what land he shall die; surely Allah is Knowing, Aware.
   

3. 42:28 وَهُوَ ٱلَّذِى يُنَزِّلُ ٱلْغَيْثَ مِنۢ بَعْدِ مَا قَنَطُوا۟ وَيَنشُرُ رَحْمَتَهُۥ وَهُوَ ٱلْوَلِىُّ ٱلْحَمِيدُ

   And He it is Who sends down the rain after they have despaired, and He unfolds His mercy; and He is the Guardian, the Praised One.
   

4. 57:20 ٱعْلَمُوٓا۟ أَنَّمَا ٱلْحَيَوٰةُ ٱلدُّنْيَا لَعِبٌ وَلَهْوٌ وَزِينَةٌ وَتَفَاخُرٌۢ بَيْنَكُمْ وَتَكَاثُرٌ فِى ٱلْأَمْوَٰلِ وَٱلْأَوْلَٰدِ كَمَثَلِ غَيْثٍ أَعْجَبَ ٱلْكُفَّارَ نَبَاتُهُۥ ثُمَّ يَهِيجُ فَتَرَىٰهُ مُصْفَرًّا ثُمَّ يَكُونُ حُطَٰمًا وَفِى ٱلْءَاخِرَةِ عَذَابٌ شَدِيدٌ وَمَغْفِرَةٌ مِّنَ ٱللَّهِ وَرِضْوَٰنٌ وَمَا ٱلْحَيَوٰةُ ٱلدُّنْيَآ إِلَّا مَتَٰعُ ٱلْغُرُورِ

   Know that this world's life is only sport and play and gaiety and boasting among yourselves, and a vying in the multiplication of wealth and children, like the rain, whose causing the vegetation to grow, pleases the husbandmen, then it withers away so that you will see it become yellow, then it becomes dried up and broken down; and in the hereafter is a severe chastisement and (also) forgiveness from Allah and (His) pleasure; and this world's life is naught but means of deception.