calends

1. Often with initial capital: the first day of a month.Synonyms: Kal., first calendsAncient-Romehistoricalpluralplural-only

2. (by extension) A day for settling debts and other accounts.Examples: "To expedite theſe knots were worthy a learned and memorable Synod; while our enemies expect to ſee the expectation of the Church tir'd out with dependencies and independencies how they will compound, and in what Calends."broadlypluralplural-only

3. (by extension, biblical, Judaism, obsolete) Synonym of Rosh Hodesh (“the Jewish festival of the new moon, which begins the months of the Hebrew calendar”).Examples: "The feasts of the Israelites were the Sabbath; the first day of each month, called in our translations calends, or new-moon; the three great feasts of the passover, pentecost, and tabernacles, instituted in memory of the three greatest blessings they received from God, […]"; "חֹדֶשׁ m. […] the new moon, the day of the new moon, the calends of a lunar month which was a festival of the ancient Hebrews, Num[bers] 29:6; 1 Sam[uel] 20:5; 18:24; Ex[odus] 19:1, […]"Synonyms: Rosh HodeshJudaismbroadlyobsoletepluralplural-only

4. (rare) Synonym of calendar; (figurative) an account, a record.Examples: "[N]ow doth [John] Oldcastle shine: / Him for a Saint within your Kalends hold."Synonyms: calendarpluralplural-onlyrare

5. (obsolete, figurative) The first day of something; a beginning.Examples: "Whoever shall sell a calf or a yearling, let him be answerable against the scab from the calends of winter until the Feast of Patrick."figurativelyobsoletepluralplural-only