divan Look up divan at Dictionary.com
1586, "Oriental council of state," from Turk. divan, from Arabic diwan, from Pers. devan "bundle of written sheets, small book, collection of poems" (as in the "Divan i-Hafiz"), related to debir "writer." Sense evolved through "book of accounts," to "office of accounts," "custom house," "council chamber," then to "long, cushioned seat," such as are found along the walls in Middle Eastern council chambers. (See couch.) The sofa/couch sense was taken into Eng. 1702; the "book of poems" sense in 1823.