1 فَحُشَ  , aor. فَحُشَ , inf. n. فُحْشٌ (S, O, Msb, K) and فَحَاشَةٌ, (TA,) It (a thing, or an affair, or anything, TA, or any evil thing, S) was, or became, excessive, immoderate, enormous, exorbitant, beyond measure, (S, O, TA,) or overmuch; (O, K, TA;) as also ↓ تفاحش : (S, TA:) it (a thing) was or became, foul, evil, bad, abominable, or unseemly; [gross, immodest, lewd, or obscene;] as also فَحَشَ, aor. فَحُشَ : (Msb:) [or excessively, or beyond measure, foul, &c.: (see فَاحِشَةٌ:)] and ↓ تفاحش it (a thing, or an affair,) increased by degrees (تَزَايَدَ) in foulness, evilness, badness, &c. (A.) And فَحُشَتِ المَرْأَةُ The woman became foul, or ugly, and old. (IAar.) ― -b2- See also 4, in two places. 2 فَحَّشَ see 4, in two places. 3 فاحشهُ  , (T in art. بذأ,) inf. n. مُفَاحَشَهٌ, (T and K in that art.,) [He vied with him, or strove to surpass him, in foul, unseemly, gross, or obscene, speech or language: and he held such discourse with him:] the inf. n. is syn. with مُبَاذَأَةٌ. (T and K in that art.) 4 افحش  , (Msb, K,) or افحش فِى المَنْطِقِ, (S,) or فِى الكَلَامِ, (Mgh,) or فِى كَلَامِهِ, (A,) inf. n. إِِفْحَاشٌ and ↓ فُحْشٌ , accord. to Lh and Kr, but the latter is correctly a simple subst. [used as an inf. n. of this verb], (TA,) He uttered فُحْش, (S, A, Mgh, Msb, K,) i. e., foul, evil, bad, abominable, unseemly, [gross, immodest, lewd, or obscene,] speech or language; (Mgh, Msb;) as also ↓ فَحَشَ فى المنطق, (TA,) and فى الكلام ↓ فحّش , (Mgh,) or فى كلامه, (A,) and فى كلامه ↓ تفحّش : (S, A:) and ↓ تَفَاحَشَ also signifies the same; and he manifested, discovered, or revealed, or he made a show of, such speech or language. (O, * K, * TA.) You say, افحش عَلَيْهِ فِى المَنْطِقِ [He uttered such speech or language against him]; (S;) and in like manner, ↓ فَحَشَ , (TA,) and ↓ فحّش ; (Mgh;) and عَلَيْهِ بِلِسَانِهِ ↓ تفحّش . (TA.) ― -b2- Also افحش He was, or became, niggardly, tenacious, or avaricious. (Msb.) 5 تَفَحَّشَ see 4, in two places: ― -b2- and see 10. 6 تَفَاْحَشَ see 1, in two places: ― -b2- and see 4. 10 استفحشهُ  [He deemed it foul, evil, bad, abominable, unseemly, immodest, lewd, or obscene: or excessively, or beyond measure, foul, &c.]. (Mgh in art. قذر.) And بِالشَّىْءِ ↓ تفحّش He deemed the thing foul, evil, &c.: or excessively, or beyond measure, foul, &c. (TA.) فُحْشٌ ذ inf. n. of فَحُشَ [q. v.]. (S, O, &c.) ― -b2- See also 4. ― -b3- Excess, exorbitance, or transgression of the proper bounds or limits; (O, TA;) [in anything; (see 1;) and particularly] in speech or language; (TA;) and in reply: (A, * O, K, * TA:) foul, evil, bad, abominable, or unseemly; [gross, immodest, lewd, or obscene;] speech or language; (Mgh, Msb, TA;) as also ↓ فَحْشَآءُ . (Msb.) فَحْشَآءُ  : see فَاحِشَةٌ, in three places: ― -b2- and see also فُحْشٌ. فَحَّاشٌ  : see the next paragraph. فَاحِشٌ  Anything, (Msb, TA,) or any evil thing, (S,) excessive, immoderate, enormous, exorbitant, beyond measure, exceeding the proper bounds or limits, (S, O, Msb, TA,) or overmuch: (O, K, TA:) anything not agreeable with truth, and with rule or measure: (TA:) foul, evil, bad, abominable, or unseemly; [gross, immodest, lewd, or obscene;] applied to a thing or an affair, (Mgh, Msb,) and to speech or language. (TA.) It is said in a trad., He was asked respecting the blood of fleas, [whether it rendered a garment impure,] and said إِِنْ لَمْ يَكُنْ فَاحِشًا فَلَا بَأْسَ بِهِ If it is not excessive, or beyond measure, there is no harm in it. (TA.) ― -b2- A man who transgresses the proper bounds or limits [in anything: and particularly] in speech or language, (TA,) and in reply: (K, * TA:) who is foul, evil, bad, abominable, or unseemly; [gross, immodest, lewd, or obscene;] in speech or language, (Mgh, TA,) and in action: (TA:) and ↓ فَحَّاشٌ signifies the same; (S, * A, * Mgh;) or has an intensive signification: (TA:) pl. of the former فُحَشَآءُ, like as جُهَلَآءُ is pl. of جَاهِلٌ, since فُحْش is a sort of جَهْل, and contr. of حِلْم. (IJ.) It is said in a trad., لَا تَكُونِى فَاحِشَةً, meaning Be not thou a trangressor of the proper bounds or limits in reply: which words were addressed to 'Áïsheh: (K, TA:) but accord. to one relation, the words were لَا تَقُولِى فَاحِشَةً. (TA.) [See فَاحِشَةٌ, below.] ― -b3- A man evil in disposition. (IB.) ― -b4- A man niggardly, tenacious, or avaricious: (A, TA:) or very niggardly: (K, TA:) or excessively, or inordinately, so. (S.) فَاحِشَةٌ  [An excess; an enormity; anything exceeding the bounds of rectitude:] a thing excessively, enormously, or beyond measure, foul, evil, bad, abominable, or unseemly; [gross, immodest, lewd, or obscene:] (Mgh:) or anything not agreeable with truth: (Lth, Mgh:) or a sin, or crime, that is very foul, evil, bad, &c.: or anything forbidden by God: (K:) or any saying, or action, that is foul, evil, bad, &c.: (TA:) and ↓ فَحْشَآءُ signifies the same as فَاحِشَةٌ; (S;) or an enormity, or excessive sin, beyond measure foul, evil, bad, &c.; or a thing that reason disapproves, and the law regards as foul, evil, bad, &c.: (Bd in ii. 164:) the pl. of فَاحِشَةٌ is فَوَاحِشُ. (Msb, TA.) Also, particularly, Adultery, or fornication; (S, Mgh, Msb, K;) and so ↓ فَحْشَآءُ : (Bd in xii. 24; &c.:) so in the Kur iv. 23 and lxv. 1 [as well as in numerous other instances]: or the فاحشة [or excess] there mentioned is the women's going out without permission: (Mgh, Msb:) or their using foul language against their husband's relations, by reason of the sharpness of their tongues. (Esh-Sháfi'ee.) And ↓ فَحْشَآءُ particularly signifies Niggardliness, tenaciousness, or avarice, (A, K,) in the payment of the poor-rate: or the abstaining [altogether] from paying it. (TA.) So in the Kur ii. 271. (A, TA.) أَفْحَشُ  [More, and most, excessive, &c.]. مُتَفَحِّشٌ  One who affects, or takes upon himself, the reviling of others. (TA.) ― -b2- One who commits excess (فَاحِشَة) which is forbidden. (TA.) Credit: Lane Lexicon