خ ب وkh-b-w
(ن) خَبَا يَخْبُوْ خَبْوًا وَخُبُوًّاkhabā yakhbū khabwan wa-khubuwwan: for a fire to die down, for a flame to grow dim. Only once in the Quran: ﴿كُلَّمَا خَبَتْ زِدْنٰهُمْ سَعِيْرًا﴾ (Al-Isrāʾ 17:97) — i.e. whenever the fire dies down, We shall make it blaze up further.