Origin: 1325–75; ME kalendes, alter. (with native pl. suffix) of L kalendae, perh. equiv. to cal- (base of calāre to proclaim) + -end- formative suffix (perh. for *-and-) + -ae pl. ending
cal·ends also kal·ends (kāl'əndz, kā'ləndz) n.
pl.calends also kalends The day of the new moon and the first day of the month in the ancient Roman calendar.
[Middle English kalendes, from Latin kalendae; see kelə-2 in Indo-European roots.] ca·len'dal (kə-lěn'dəl) adj.