فَسَدَ

, aorist فَسُدَ , (S, M, A, O, L, Msb, K, &c.,) which is the aorist commonly known, (TA,) and فَسِدَ , (IDrd, M, O, L, K,) which is of weak authority; (IDrd, O, TA;) and فَسُدَ, aorist فَسُدَ ; (S, M, O, L, K;) verbal noun فَسَادٌ (S. M, A, O, L, K) and فُسُودٌ, (M, O, L, K,) the former being verbal noun of فَسَدَ, aorist فَسُدَ , (S, A, O,) and so the latter, and the former being also verbal noun of فَسُدَ, (O,) or the former is of فَسُدَ and the latter is of فَسَدَ, (TA,) or the former is a simple subst., and the latter is the verbal noun; (Msb;) It (a thing, S, A, O) [and he (a man)] was, or became, bad, evil, corrupt, unsound, wrong, wrongful, improper, unrighteous, wicked, vitious, depraved, or dishonest; devoid of virtue, or efficacy; in a corrupted, vitiated, perverted, marred, spoiled, injured, impaired, deteriorated, tainted, or infected, state; in a state of disorder or disturbance, destruction, annihilation, consumption, waste, or ruin; (MA, KL, PS, &c.;) and so ↓ استفسد: (KL:) opposite of صَلَحَ: (M, * L, K:) it became altered in its state [for the worse]: and it became null, void, of no force, or of no account; or it came to nought, or perished; according to the explanation by most of the expositors of the example in the Qur'an, 21:22. (MF.)