The term 'Days of Old' can be broken down into two crossword solutions: YORE and IDES. YORE is an archaic word meaning 'time long past' and is often used to refer to a period of time in the distant past. The IDES refers to the 15th day of the month in the ancient Roman calendar, which was used to mark important dates and festivals. Together, these two words evoke a sense of nostalgia for days gone by.