تَضْعِيفٌ
1.
verbal noun of 2. (S &c.)
2.
تَضَاعِيفُ الشَّىْءِ means The doubles, or trebles, or multiples, of the thing; (مَا ضُعِّفَ مِنْهُ;) in this sense, تضاعيف has no singular, like تَبَاشِيرُ &c. (TA.)
3.
تَضَاعِيفُ الكِتَابِ: see ضِعْف, near the end.