Roman calendar Word Origin noun
- the calendar in use in ancient Rome until 46 b.c., when it was replaced with the Julian calendar.
Compare. Origin of Roman calendar First recorded in 1780–90 British Dictionary definitions for roman calendar Roman calendar noun
- the lunar calendar of ancient Rome, replaced in 45 bc by the Julian calendar. It originally consisted of 10 months, with a special month intercalated between Feb 23 and 24