[1] : The Collaborative International Dictionary of English v.0.48

calends \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.
   1913 webster

   the greek calends, a time that will never come, as the
      greeks had no calends.
      1913 webster
see also:
claim kalends the greek calends 

Calends >> C Words
Calends, definition of term: Calends
calends_pag1.html

Greek Calends >> G Words
Greek Calends, definition of term: Greek Calends
greek+calends_pag1.html