σίλλυβος

A. parchment-label, appended to the outside of a book, Cic. Att. 4.4a.1, 4.8.2, dub. in 4.5.3 (v. infr.): pl. σίλλυβα, τά,= θύσανοι, Poll. 7.64. (In Cic. Att. 4.5.3 the vv.ll. sit tybis and sic tu iubes are perh. traces of sittybis; but σιττύβαι (q.v.) has an inappropriate meaning, unless it can mean leather case of a book.)