> Is "calare" a late Latin word?
> Calendae / Calendar = from gerundial form of Latin "calare", cognates =
> greek "kalein"
The Latin word is best spelled "Kalendar". Because of its religious
significance, it retained the old spelling of "k" before "a" ("q" before o
and u, "c" elsewhere). It seems most probable that it is cognate with (not
borrowed from) the Greek kalein.
The verb calo (best spelled kalo), and derivatives, is attested extremely
early, e.g. CIL I:I about 500-450 BC.
Peter