| 100% | IDES | 4 | 15th day of March, May, July and October in the ancient Roman calendar |
| 66% | IDESOF | 6 | Words which could precede the 15th day of March, May, July or October in Roman times |
| 54% | IDES | 4 | Mid of the months March, May and July in Roman calendar |
| 43% | CALENDS | 7 | First day of the month in Ancient Roman calendar |
| 43% | IDES | 4 | The ___ of March (day in Roman calendar) |
| 42% | IDES | 4 | "The ___ of March" (15th March in ancient Roman calendar) |
| 35% | COLOSSEUM | 9 | Ancient Roman stadium in the middle of Rome |
| 35% | PALMYRA | 7 | Ancient Roman city in the middle of Syria |
| 35% | MTWTF | 5 | Days of the week in a calendar heading |
| 34% | IDES | 4 | 13th or 15th days, on the Roman calendar |
| 34% | CALENDS | 7 | First day of the month, in ancient Rome |
| 34% | CATO | 4 | Ancient Roman senator mentioned in the first chapter of “Moby-Dick” |
| 34% | IDES | 4 | 15th's and 13th's of months in Roman calendar |
| 33% | IDES | 4 | 15th day of March |
| 33% | LUSITANIA | 9 | Ancient Roman province in the Iberian peninsula corresponding to most of modern Portugal |
| 33% | MILA | 4 | First name in the credits of Four Good Days and Bad Moms |
| 33% | SCORPIO | 7 | Sign of the zodiac in October and November |
| 33% | MARZO | 5 | The month of March in Spanish and Italian |
| 33% | IDES | 4 | Midmonth day in the Roman calendar |
| 32% | BELTANE | 7 | May Day festival in the Gaelic calendar |
| 32% | HYPOCAUST | 9 | Ancient Roman heating system in which hot air circulates under the floor and between double walls |
| 32% | NONES | 5 | Ninth day before the ides of each month in the Roman calendar |
| 32% | IDES | 4 | Day originally marked by a full moon in the early Roman calendar |
| 32% | MEMORIAL | 8 | ___ Day, annual federal holiday in May in honor of the martyrs |
| 32% | TOGA | 4 | Attire in the ancient Roman Senate |
| 32% | JAFFA | 5 | Ancient port in Israel associated with the mythological story of Andromeda and Perseus |
| 31% | INCA | 4 | Ancient builder of the lost city in "Dora and the Lost City of Gold" |
| 31% | ARAMAIC | 7 | Ancient language of the Middle East still spoken in Syria and parts of Lebanon |
| 31% | ORT | 3 | Schloss ___, castle once in the possession of Frederick III, Holy Roman Emperor, and located on Traunsee Lake, Austria |