Core sense — a wonder; a very evil, abominable thing; a calamitygenerated
1.1a wonder, or wonderful thing; a very evil, abominable, or severe thing or affair; a calamity—إِدَّةٌ
Or it is the former word that has the sense of a calamity; and so do أَدُّ or آدُّ [originally آدِدً], which is of the measure فَاعِلْ.
Plural of إِدُّ: إِدادُ, or أَدَادُ (but this, if correct, is an ism jamʿ), or آدَادُ; and of إِدَّةٌ: إِدَدٌ.
[meaning as above]—أَمْرْإِدُّ
Here إِدُّ is used as an adjective, according to Lh.
[a very evil, abominable, or severe calamity]—دَاهِيَةٌ إِدَّةٌ
you have certainly done a very evil, or abominable, thing—لَقَدْ جِئْتُمْ شَيْئًا إِدًّا
Hence the saying in the Qur'ān [19:91].
According to another reading, أَدُّا; both mean great, or grievous. Some of the Arabs also say بِشَىْءٍ آدٍّ, which means the same.
Show Lane's original text
: see أَدُّ . Also, and إِدَّةٌ , A wonder, or wonderful thing: (M, L, K:) a very evil, abominable, severe, thing, or affair: (S, M, A, L, K:) a calamity; (S, A, L, K,) or thus the former word signifies; (M;) as also أَدُّ , (as in the copies of the K,) or آدُّ , [originally آدِدً ] of the measure فَاعِلْ : (so in the S and L:) pl. (of إِدُّ M, TA) إِدادُ (K, TA,) or أَدَادُ (T, CK, [but this, if correct, is a quasi-pl. n.,]) or آدَادُ (M,) and (of إِدَّةٌ , S, M) إِدَدٌ (T, S, M, K.) You say also أَمْرْإِدُّ [meaning as above], using إِدُّ as an epithet, accord. to Lh. (M.) And دَاهِيَةٌ إِدَّةٌ [A very evil, abominable, or severe, calamity]. (A.) Hence the saying in the Kur [xix. 91], لَقَدْ جِئْتُمْ شَيْئًا إِدًّا Verily ye have done a very evil, or abominable, thing: (S, M: *) or, accord. to one reading, أَدُّا ; both meaning great, or grievous: and some of the Arabs say, بِشَىْءٍ آدٍّ , which means the same. (T, TA.)