vespers definition by American Heritage Dictionary
also Ves·persplural noun (used with a sing. or pl. verb)
- Ecclesiastical a. The sixth of the seven canonical hours.b. A worship service held in the late afternoon or evening in many Western Christian churches.c. The time of day appointed for this service.
- Roman Catholic Church A service held on Sundays or holy days that includes the office of vespers.
Origin: Obsolete French vespres, from Old French, from Medieval Latin vesperās, evening service, from Latin, accusative pl. of vespera, evening, variant of vesper; see Vesper .