فَلَمَّا جَآءَ أَمْرُنَا نَجَّيْنَا صَٰلِحًا وَٱلَّذِينَ ءَامَنُوا۟ مَعَهُۥ بِرَحْمَةٍ مِّنَّا وَمِنْ خِزْىِ يَوْمِئِذٍ ۗ إِنَّ رَبَّكَ هُوَ ٱلْقَوِىُّ ٱلْعَزِيزُ
Important Words:
القوی (Powerful) is derived from قوی meaning, he was or became strong; vigorous, robust or sturdy. قوی علیه means, he had strength or power sufficient for it; or he had strength or power to endure it; he prevailed against it. قوة which is the noun-infinitive from this root means, strength, power, potency, might or force. قوی therefore means, powerful, strong, mighty. القوی is one of the attributive names of God, meaning, Powerful, Mighty, etc. (Lane & Aqrab).
Commentary:
Every punishment is a disgrace in itself. The addition of the words, the ignominy of that day, therefore shows that there were some special elements of disgrace in the visitation that overtook the people of Salih.