TRIODION. — Liturgical book of the Byzantine rite, containing the Offices of the period preparatory to the feast of Easter, that is, from the Sunday of the Publican and the Pharisee through Holy Saturday inclusive.
It is called T. because many of the canons contained in it have only three odes: the 8th and the 9th always, and then one of the first five. It collects the compositions of about twenty poets, among whom Theodore and Joseph Studite occupy a special place. The T. was first published in Greek at Venezia in 1522, while the first Slavic edition is that of Cracovia of 1491.
BIBL.: M. Paranikas, Τὸ Τεχάσιον, in Ἐκχά. Ἀλβῆξις 13 (1893), pp. 7-8; Krumbacher, pp. 686-89; A. Maltzev, Fasten und Blumen T., Berlino 1899; J. Karabinov, Triod postnaya (piano, contenuto, redazione, versione slava), Pietroburgo 1910; K. Kirchhoff, Die Ostkirche betet. Lipsia 1934-36. Alfonso Raes