As-Sayyid ar-Radi says: "quhm" means ruin because quarrels often drive men into ruin and grief. In the same way, it is said "quhmatu'l-A 'rab" which means the period (of drought) when the cattle owned by the nomad desert Arabs are reduced to bones, and this is their being driven to it. Another argument is also advanced in this matter; namely that the situation drives them to green areas, in other words the hardship of the desert life drives them to hadar (a civilized region with town and villages and a settled population [as opposed to desert] ).