• كُبِتَ
• كُبِتُوا۟
• يَكْبِتَهُمْ

Appears 2 times in the Quran.

1. 3:127 لِيَقْطَعَ طَرَفًا مِّنَ ٱلَّذِينَ كَفَرُوٓا۟ أَوْ يَكْبِتَهُمْ فَيَنقَلِبُوا۟ خَآئِبِينَ

   That He may cut off a portion from among those who disbelieve, or abase them so that they should return disappointed of attaining what they desired.
   

2. 58:5 إِنَّ ٱلَّذِينَ يُحَآدُّونَ ٱللَّهَ وَرَسُولَهُۥ كُبِتُوا۟ كَمَا كُبِتَ ٱلَّذِينَ مِن قَبْلِهِمْ وَقَدْ أَنزَلْنَآ ءَايَٰتٍۭ بَيِّنَٰتٍ وَلِلْكَٰفِرِينَ عَذَابٌ مُّهِينٌ

   Surely those who act in opposition to Allah and His Messenger shall be laid down prostrate as those before them were laid down prostrate; and indeed We have revealed clear communications, and the unbelievers shall have an abasing chastisement.