دَدَنٌ
Diversion, sport, play, or such as is vain, or frivolous
(T, S, K) and دَدًا and دَدٌ; (T, K;) all mentioned by El-Ahmar; (T;) and compared by Aboo-' Alee, in respect of having the last radical letter sometimes ن and sometimes an infirm letter and sometimes elided, to لَدُنْ and لَدَا and لَدْ; the second like قَفًا and عَصًا, and the third like يَدٌ, (T, TA,) and by some written دَدٌّ, with teshdeed; (TA; [but it is there implied that this is of doubtful authority;]) and the second and third said by some to be formed from the first, by the change of ن into ا and by the elision of ن; (TA;) Diversion, sport, play, or such as is vain, or frivolous; (T, S, K;) as also دَيْدٌ, [which should be mentioned in art. ديد,] and ↓ دَيَدَانٌ, (IAar, T, K, [not دَيْدَانٌ as in Freytag's Lex., being followed in the K by the epithet مَحَرَّكَةٌ,]) and ↓ ديدون, (TA, [app. دَيْدُونٌ, of the measure فَيْعُولٌ, like تَيْقُورٌ,]) and ↓ دَيْدَبُونٌ, (IAar, T, S,) [mentioned also in the S in art. دبن,] by Sgh and in the K mentioned in art. ددب, and said in the K to be wrongly included by J in the present art. (TA.) دَدَنٌ and دَدَانٌ are the only words in which the first and second radical letters are the same, without an intervening letter, and both movent. (S.)