• قَتَر
• قَتَرَة
• قَتُور
• مُقْتِر
• يَقْتُرُوا۟

Appears 5 times in the Quran.

1. 2:236 لَّا جُنَاحَ عَلَيْكُمْ إِن طَلَّقْتُمُ ٱلنِّسَآءَ مَا لَمْ تَمَسُّوهُنَّ أَوْ تَفْرِضُوا۟ لَهُنَّ فَرِيضَةً وَمَتِّعُوهُنَّ عَلَى ٱلْمُوسِعِ قَدَرُهُۥ وَعَلَى ٱلْمُقْتِرِ قَدَرُهُۥ مَتَٰعًۢا بِٱلْمَعْرُوفِ حَقًّا عَلَى ٱلْمُحْسِنِينَ

   There is no blame on you if you divorce women when you have not touched them or appointed for them a portion, and make provision for them, the wealthy according to his means and the straitened in circumstances according to his means, a provision according to usage; (this is) a duty on the doers of good (to others).
   

2. 10:26 لِّلَّذِينَ أَحْسَنُوا۟ ٱلْحُسْنَىٰ وَزِيَادَةٌ وَلَا يَرْهَقُ وُجُوهَهُمْ قَتَرٌ وَلَا ذِلَّةٌ أُو۟لَٰٓئِكَ أَصْحَٰبُ ٱلْجَنَّةِ هُمْ فِيهَا خَٰلِدُونَ

   For those who do good is good (reward) and more (than this); and blackness or ignominy shall not cover their faces; these are the dwellers of the garden; in it they shall abide.
   

3. 17:100 قُل لَّوْ أَنتُمْ تَمْلِكُونَ خَزَآئِنَ رَحْمَةِ رَبِّىٓ إِذًا لَّأَمْسَكْتُمْ خَشْيَةَ ٱلْإِنفَاقِ وَكَانَ ٱلْإِنسَٰنُ قَتُورًا

   Say: If you control the treasures of the mercy of my Lord, then you would withhold (them) from fear of spending, and man is niggardly.
   

4. 25:67 وَٱلَّذِينَ إِذَآ أَنفَقُوا۟ لَمْ يُسْرِفُوا۟ وَلَمْ يَقْتُرُوا۟ وَكَانَ بَيْنَ ذَٰلِكَ قَوَامًا

   And they who when they spend, are neither extravagant nor parsimonious, and (keep) between these the just mean.
   

5. 80:41 تَرْهَقُهَا قَتَرَةٌ

   Darkness shall cover them.