ت ر بt-r-b
(س) تَرِبَ يَتْرَبُ تَرَبًاtariba yatrabu taraban: for earth to cling to a thing; to be covered in dust, to be destitute.
تُرَابٌturāb (noun, ism dhāt): earth, dust. ﴿خَلَقَكُمْ مِّنْ تُرَابٍ﴾ (Ar-Rūm 30:20)
مَتْرَبَةٌmatrabah: being brought down to the dust, destitution. ﴿اَوْ مِسْكِيْنًا ذَا مَتْرَبَةٍ﴾ (Al-Balad 90:16)
تِرْبٌtirb pl. اَتْرَابٌatrāb: those who played in the same dust, of the same age. ﴿عُرُبًا اَتْرَابًا﴾ (Al-Wāqiʿah 56:37)
تَرَآئِبُtarāʾibu (singular تَرِيْبَةtarībah): the bones of the chest. ﴿يَّخْرُجُ مِنْۢ بَيْنِ الصُّلْبِ وَالتَّرَآئِبِ﴾ (Aṭ-Ṭāriq 86:7)