breviary
Concise Oxford English Dictionary © 2008 Oxford University Press:
breviary /ˈbriːvɪəri/
▶noun (pl. breviaries) a book containing the service for each day, to be recited by those in orders in the Roman Catholic Church.
– origin ME: from L. breviarium ‘summary, abridgement’, from breviare ‘abridge’.
'breviary' also found in these Oxford entries:

