دَرْجٌ

Also, and دَرَجٌ, A thing in, or upon, which one writes; (S, K;) [a scroll, or long paper, or the like, generally composed of several pieces joined together, which is folded or rolled up:] and مُدْرَجٌ, [used as a subst.,] a writing folded or rolled up; plural مَدَارِجُ: (Har p. 254:) and مدرجة [apparently مُدْرَجَةٌ, from أَدْرَجَ “ he folded ” or “ rolled up, ” with ة added to transfer it from the predicament of particle ns. to that of substs.,] signifies [in like manner] a paper upon which one writes a رِسَالَة [or message, &c.], and which one folds, or rolls up; plural مَدَارِجُ. (Har p. 246.)

فِى دَرْجِ الكِتَابِ signifies فِى طَيِّهِ [lit. Within the folding of the writing; meaning infolded, or included, in the writing]; (S, A, TA;) and فِى ثِنْيِهِ [which means the same]; (A;) and فِى دَاخِلِهِ [an explicative adjunct, meaning in the inside of the writing]. (TA.) You say, أَنْفَذْتُهُ فِى دَرْجِ الكِتَابِ [I transmitted it in the inside of the writing]. (S, TA.) And جَعَلَهُ فِى دَرْجِ الكِتَابِ [He put it in the inside of the writing]. (A, L, TA.) And فِى دَرْجِ الكِتَابِ كَذَا وَ كَذَا [In the inside of the writing are such and such things; or in the writing are enclosed, or included, or written, or mentioned, such and such things; this being commonly meant by the phrase فِى طَىِّ الكِتَابِ كذا وكذا]. (TA.)