from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The day of the new moon and the first day of the month in the ancient Roman calendar.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the first day of a month.
- n. the first day of a season.
from the GNU version of the Collaborative International Dictionary of English
- n.pl. The first day of each month in the ancient Roman calendar.
from The Century Dictionary and Cyclopedia
- In the Roman calendar, the first day of the month.
- The beginning or first period.
- In some translations of the Old Testament, the Jewish festival of the new moon.
- A calendar or orderly record, primarily of dates, but also sometimes of other facts.
- An appointed day; a day set for the payment of a debt or the payment of interest due.
Middle English kalendes, from Latin kalendae; see kelə-2 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English kalendes, from Latin kalendae, calendae, from calare ("to proclaim (the first day of a month was proclaimed in ancient Rome)") (Wiktionary)