\Cal"ends\, n. pl. [OE. kalendes month, calends, AS. calend month, fr. L. calendae; akin to calare to call, proclaim, Gr. ??????. CF. {Claim}.] The first day of each month in the ancient Roman calendar. [Written also {kalends}.] {The Greek calends}, a time that will never come, as the Greeks had no calends.