• رَّسّ

Appears 2 times in the Quran.

1. 25:38 وَعَادًا وَثَمُودَا۟ وَأَصْحَٰبَ ٱلرَّسِّ وَقُرُونًۢا بَيْنَ ذَٰلِكَ كَثِيرًا

   And Ad and Samood and the dwellers of the Rass and many generations between them.
   

2. 50:12 كَذَّبَتْ قَبْلَهُمْ قَوْمُ نُوحٍ وَأَصْحَٰبُ ٱلرَّسِّ وَثَمُودُ

   (Others) before them rejected (prophets): the people of Nuh and the dwellers of Ar-Rass and Samood,