ک س دk-s-d
(ن، ک) كَسَدَ يَكْسُدُ وَكَسُدَ يَكْسُدُ كَسَادًاkasada yaksudu wa-kasuda yaksudu kasādan: (of goods or a market) to slump, (of goods) to find no buyer. (This verb is not used in the Quran.)
كَسَادٌkasād (verbal noun, maṣdar): a slump, stagnation. Only once in the Quran: ﴿وَتِجَارَةٌ تَخْشَوْنَ كَسَادَهَا﴾ (At-Tawbah 9:24)