Machzorn.

1731 tr. Relig. Ceremonies & Customs Several Nations I. ii. xv. 139 In their books of divine service, called Mahazor.

1864 Chambers's Encycl. VI. 155 Later, the term [sc. Siddurim] was restricted to the weekday ritual, that for festivals being called Machsor (Cycle).

1883 Encycl. Brit. XV. 292/2 The Maḥzor, meaning prayer-book, is capable of division..into..the Smaller and the Larger. The Smaller Maḥzor contains ordinary prayers,..with the poetical insertions and lessons from the Pentateuch and the Prophets... The Larger Maḥzor..embodies the ordinary prayers..for the whole year, and the lessons..for all feasts and fasts and..other occasions.

1892 I. Zangwill Children of Ghetto I. 276 Three sets of Machzorim, or Festival Prayer-Books.

1973 Synagogue Light Sept. 42/2 The festival prayer book, the Machzor, is used during the High Holidays because many additional prayers not recited throughout the year are read on these days.

1974 Encycl. Brit. Micropædia VI. 505/3 Maḥzor.., originally a Jewish prayer book arranged according to liturgical chronology and used throughout the whole year... Maḥzor has come to mean the festive prayer book, as distinguished from the Jewish prayer book (Siddur) used on ordinary sabbaths and on week-days.