• ٱسْتَنكَفُوا۟
• يَسْتَنكِفَ
• يَسْتَنكِفْ

Appears 2 times in the Quran.

1. 4:172 لَّن يَسْتَنكِفَ ٱلْمَسِيحُ أَن يَكُونَ عَبْدًا لِّلَّهِ وَلَا ٱلْمَلَٰٓئِكَةُ ٱلْمُقَرَّبُونَ وَمَن يَسْتَنكِفْ عَنْ عِبَادَتِهِۦ وَيَسْتَكْبِرْ فَسَيَحْشُرُهُمْ إِلَيْهِ جَمِيعًا

   The Messiah does by no means disdain that he should be a servant of Allah, nor do the angels who are near to Him, and whoever disdains His service and is proud, He will gather them all together to Himself.
   

2. 4:173 فَأَمَّا ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ فَيُوَفِّيهِمْ أُجُورَهُمْ وَيَزِيدُهُم مِّن فَضْلِهِۦ وَأَمَّا ٱلَّذِينَ ٱسْتَنكَفُوا۟ وَٱسْتَكْبَرُوا۟ فَيُعَذِّبُهُمْ عَذَابًا أَلِيمًا وَلَا يَجِدُونَ لَهُم مِّن دُونِ ٱللَّهِ وَلِيًّا وَلَا نَصِيرًا

   Then as for those who believe and do good, He will pay them fully their rewards and give them more out of His grace; and as for those who disdain and are proud, He will chastise them with a painful chastisement. And they shall not find for themselves besides Allah a guardian or a helper