I. ˈmisəl noun
( -s )
Usage: sometimes capitalized
Etymology: Middle English messel, missall, from Middle French & Medieval Latin; Middle French messel, from Medieval Latin missale, from neuter of missalis of mass, from Late Latin missa mass + Latin -alis -al — more at mass
1. : a book containing all that is said or sung at mass during the entire year and including with the ordinary, proper, and common votive masses and supplementary prayers and masses for certain localities or orders
2. : a book of devotions
II. adjective
Etymology: Medieval Latin missalis
archaic : of or relating to the mass or a missal