أَفْسَدُ

is [a noun denoting the comparative and superlative degrees] from الفَسَادُ; as in the prov., أَفْسَدُ مِنْ بَيْضَةِ البَلَدِ i. e. [More corrupt, or unsound, &c.,] than the egg that the ostrich leaves in the desert, not returning to it, in consequence of which it becomes corrupt, or unsound, &c.: and, anomalously, from الإِفْسَادُ; as in the prov., أَفْسَدَ مِنَ الجَرَادِ [i. e. More corrupting, or marring, &c., than the locust], because it strips the trees and the herbage; and as in other provs. (Meyd.)