ل ب بl-b-b
(ن) لَبَّ يَلُبُّ لَبًّاlabba yalubbu labban (original form: لَبَبَ يَلْبُبُlababa yalbubu): to take out the kernel of almonds etc. (this verb is not used in the Quran).
لُبٌّlubb pl. اَلْبَابٌal-bāb (noun, ism dhāt): the kernel of a thing, its pure essence; then used for pure intellect; "اُولُو الْاَلْبَابِūlū al-ʾalbāb" = people of understanding. ﴿اِنَّمَا يَتَذَكَّرُ اُولُوا الْاَلْبَابِ﴾ (Ar-Raʿd 13:19); ﴿فَاتَّقُوا اللّٰهَ يٰٓاُولِي الْاَلْبَابِ﴾ (Al-Māʾidah 5:100)