In the "Pater Noster" prayer, why is "panem nostrum cotidianum" sometimes written as "panem nostrum quotidianum"?

1 Answer 1


Quotidianum and cotidianum are simply two different ways to spell the same word. This word belongs to a group of words that can be spelled with either a QU or a C, which includes cum and quom.

These interchangible spellings are probably due to a similar sound (in at least one dialect of Latin) between QUO and CO or QUO and CU. The same thing is happening a bit further down in the prayer with the spellings caelis and coelis, because the pronunciation of AE and OE sounds the same in some dialects.

  • 2
    Some spell it cotidianum, some spell it quotidianum, but the weirdest people are those who spell it supersubstantialem 😉 May 19 at 21:41
  • cum and quam are not "the same word".
    – fdb
    May 20 at 15:10
  • 2
    @fdb: the answer says “quom”, not “quam”.
    – Asteroides
    May 20 at 16:23

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