τετράδιον
From LSJ
χαῖρ', ὦ μέγ' ἀχρειόγελως ὅμιλε, ταῖς ἐπίβδαις, τῆς ἡμετέρας σοφίας κριτὴς ἄριστε πάντων → all hail, throng that laughs untimely on the day after the festival, best of all judges of our poetic skill
English (LSJ)
τό, a
A guard of soldiers (normally consisting of four men), Ph.2.533, Act.Ap.12.4. II quaternion of parchment, POxy.2156.10 (iv/v A.D.), Tz.H.9.290; cf. τετράδειον.