sittўbus

i, m.
I. a strip of parchment, attached to a roll or book, bearing the title and the author's name, Cic. Att. 4, 5, 3; 4, 8, a, 2 B. and K. (in some editions sillybus; cf. σιλλύβους, id. ib. 4, 4, b, 1).
Lewis & Short
A Latin Dictionary, 1879
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