ب ع ث رb-ʿ-th-r
(quadriliteral, rubāʿī) بَعْثَرَ يُبَعْثِرُ بَعْثَرَةًbaʿthara yubaʿthiru baʿtharatan: to turn upside down, to overturn and bring out, to scatter. The lexicographers describe it as a quadriliteral root formed by combining b-ʿ-th and b-th-r. Twice in the Quran, both times in the passive voice: ﴿وَإِذَا الْقُبُوْرُ بُعْثِرَتْ﴾ (Al-Infiṭār 82:4); ﴿أَفَلَا يَعْلَمُ إِذَا بُعْثِرَ مَا فِي الْقُبُوْرِ﴾ (Al-ʿĀdiyāt 100:9)