شد

أَشُدٌّ ذ , (S, A, Mgh, L, K, &c.,) also pronounced أُشُدٌّ, (Seer, K,) but the latter form is rare, (TA,) is both masc. and fem., (Zj, TA,) and as used in the Kur it has somewhat different meanings: (Az, TA:) in the phrase حَتَّى يَبْلُغَ أَشُدَّهُ, (S, K,) and other phrases in the Kur, (TA,) أَشُدّ is expl. as meaning The state of strength; (S, Mgh, L, K;) which is from eighteen to thirty years: (S, L, K:) or from about seventeen to forty: (Zj:) or from thirty to forty: (Zj in another place:) or puberty: (Az, Mgh, L:) or firmness, or soundness, of judgment, produced by experience: (L:) or puberty together with such maturity as gives evidence of rectitude of conduct or course of life; (Zj, Az, Mgh, L;) which may be at, or before, the age of eighteen years; accord. to most of the men of science, and among them Esh-Sháfi'ee; (Zj, Az, L;) and the extreme term of which is three and thirty years: (Mgh:) or the age of forty years; as in the Kur xlvi. 14: (L:) أَشُدٌّ [originally أَشْدُدٌ] is a sing. having a pl. form, like اآنُكٌ; and these two words are [said to be] the only instances of the kind: (S, K: [but see اآنُكٌ:]) or a pl. having no proper sing., (S, Mgh, K,) like اآسَالٌ and أَبَابِيلُ and عَبَادِيدُ and مَذَاكِيرُ: (S:) or its sing. is ↓ شِدَّةٌ, (AHeyth, S, Mgh, K,) accord. to Sb; and this is good with respect to the meaning, because one says, بَلَغَ الغُلَامُ شِدَّتَهُ; (S;) but فِعْلَةٌ does not form a pl. of the measure أَفْعُلٌ; (S, K;) for as to أَنْعُمٌ, (S,) which is said by AHeyth to be pl. of نِعْمَةٌ, (TA,) [and respecting which Mtr says that] أَشُدٌّ is said to be pl. of شِدَّةٌ like as أَنْعُمٌ is of نِعْمَةٌ, formed by regarding the ة as elided, (Mgh, [and AHeyth says the like,]) it is only pl. of نُعْمٌ in the phrase يَوْمُ نُعْمٍ: (S:) or its sing. is شَدٌّ, like as كَلْبٌ is of أَكْلُبٌ; or شِدٌّ, like as ذِئْبٌ is of أَذْؤُبٌ; (S, K;) accord. to some; (S;) but neither شَدٌّ nor شِدٌّ has been heard from the Arabs [as sing. of أَشُدٌّ]; and they are only deduced from analogy: (S, K:) or it is pl. of أَشَدُّ; and the أ is not regarded in the formation of this pl. (IJ, from A 'Obeyd.)