دنس1 دَنِسَ, aor. ـَ inf. n. دَنَسٌ (S, A, K) and دَنَاسَةٌ, (K,) It (a garment, S, A, K) was, or became, dirty, filthy, foul, sullied, defiled, or polluted; (S, M, A, K;) as also ↓ تدنّس: (S, M, A:) and in like manner (tropical:)  said of a man's honour, (K, TA,) and (tropical:)  of his disposition. (TA.) 2 دنّسهُ, (S, M, A, K,) inf. n. تَدْنِيسٌ, (S, K,) He, or it, made it (namely a garment, S, A, K) dirty, filthy, or foul; sullied, defiled, or polluted, it. (S, M, A, K.) And in like manner, دنّس عِرْضَهُ (tropical:)  [He sullied his honour;] he did to him that which disgraced him. (A, K.) And دنّسهُ سُوْءُ خُلُقِهِ (tropical:)  [The evilness of his disposition sullied his honour]. (A, TA.) 5 تَدَنَّسَ see 1.دَنَسٌ Dirt; filth; soil, or pollution: (S, M, A, K:) pl. أَدْنَاسٌ. (M.) [Hence,] هُوَ يَتَصَوَّنُ مِنَ الأَدْنَاسُ (tropical:)  [He preserves his honour from pollutions], and ↓ مِنَ المَدَانِسِ (tropical:)  [from causes of pollution, مَدَانِسُ being pl. of ↓ مَدْنَسَةٌ, a noun of the same kind as مَبْخَلَةٌ and مَجْبَنَةٌ]. (A, TA.) دَنِسٌ Dirty, filthy, foul, sullied, defiled, or polluted: (M, K:) [pl. أَدْنَاسٌ, agreeably with analogy, and دُنَسَآءُ, contr. to analogy; but the latter is perhaps post-classical.] You say, قَوْمٌأَدْنَاسٌ and ↓ مَدَانِيسٌ [A people dirty, filthy, &c.; both in a proper and in a tropical sense]. (K.) And هُوَ دَنِسُ المُرُوْءَةِ and الثِّيَابِ and الجَيْبِ and الأَرْدَانِ (tropical:)  [He is foul in character, conduct, or the like]. (A.) مَدْنَسَةٌ; and its pl. مَدَانِسُ: see دَنَسٌ.مَدَانِيسٌ: see دَنِسٌ.