The expression in the Authorized Version (Isaiah 19:7), "the paper reeds by the brooks," is in the Revised Version more correctly "the meadows by the Nile." The words undoubtedly refer to a grassy place on the banks of the Nile fit for pasturage.
In 2 John 1:12 the word is used in its proper sense. The material so referred to was manufactured from the papyrus, and hence its name. The papyrus (Heb. gome) was a kind of bulrush (q.v.). It is mentioned by (Job 8:11) and (Isaiah 35:7). It was used for many purposes. This plant (Papyrus Nilotica) is now unknown in Egypt; no trace of it can be found. The unaccountable disappearance of this plant from Egypt was foretold by (Isaiah 19:6,7) as a part of the divine judgment on that land. The most extensive papyrus growths now known are in the marshes at the northern end of the lake of Merom.
Source: Easton's Bible Dictionary
Paper
PA'PER, n. L. papyrus, the name of an Egyptian plant, from which was made a kind of paper.
1. A substance formed into thin sheets on which letters and figures are written or printed. Paper is made of different materials; but among us it is usually made of linen or cotton rags. A fine paper is made of silk, particularly for bank-notes,which require to be very thin.
2. A piece of paper.
3. A single sheet printed or written; as a daily paper; a weekly paper; a periodical paper; referring to essays, journals,newspapers, &c.
4. Any written instrument, whether note, receipt, bill, invoice, bond, memorial, deed, and the like. The papers lie on the speaker's table.
They brought a paper to me to be signed.
5. A promissory note or notes or a bill of exchange; as negotiable paper.
6. Hangings printed or stamped; paper for covering the walls of rooms.
PA'PER, a. Made of paper; consisting of paper.
1. Thin; slight; as a paper wall.
PA'PER, v.t. To cover with paper; to furnish with paper hangings; as, to paper a room or a house.