Five Thousand

Root letters:

Kha-Miim-Siin

khamsah alafin​

3:125
بَلَى إِنْ تَصْبِرُوا وَتَتَّقُوا وَيَأْتُوكُمْ مِنْ فَوْرِهِمْ هَذَا يُمْدِدْكُمْ رَبُّكُمْ بِخَمْسَةِ آلاَف ٍ مِنَ الْمَلاَئِكَةِ مُسَوِّمِينَ
Balá 'In Taşbirū Wa Tattaqū Wa Ya'tūkum Min Fawrihim Hādhā Yumdidkum Rabbukum Bikhamsati 'Ālāfin Mina Al-Malā'ikati Musawwimīna 

Indeed, if you are patient and are righteous and they come and attack you, He will supply you with five thousand of the angels battle trained