There are 2 names for the city of Makkah mentioned in the Qur’an; Makkah مَكّه, and Bakkah بكّه.
The scholars have disputed over which is the official name for the city and which is the nickname. However, brother Nouman Ali Khan explains that Makkah is the stronger opinion – as the official name of the ancient city.
So where does the word Bakkah come from?
It comes from the word بكك – Bakk – a meaning of Crowdedness/Overcrowding etc.
Amazingly, in the Qur’an – Allah uses every word with a powerful wisdom. So that when He uses the word Bakkah – He mentions it in the context of the pilgrimage of Hajj (since Bakk signifies overcrowding [and the most overcrowding there occurs during the Hajj pilgrimage season]);
إِنَّ أَوَّلَ بَيْتٍ وُضِعَ لِلنَّاسِ لَلَّذِي بِبَكَّةَ مُبَارَكًا وَهُدًى لِّلْعَالَمِينَ
Verily, the first House (of worship) appointed for mankind was that at Bakkah (Makkah), full of blessing, and a guidance for Al-‘Alamin (the mankind and jinns). [aal Imraan 3:96]
فِيهِ آيَاتٌ بَيِّنَاتٌ مَّقَامُ إِبْرَاهِيمَ ۖ وَمَن دَخَلَهُ كَانَ آمِنًا ۗ وَلِلَّهِ عَلَى النَّاسِ حِجُّ الْبَيْتِ مَنِ اسْتَطَاعَ إِلَيْهِ سَبِيلًا ۚ وَمَن كَفَرَ
فَإِنَّ اللَّهَ غَنِيٌّ عَنِ الْعَالَمِينَ