a. d.

Latin

Alternative forms

Phrase

a. d.

  1. initialism of ante diem
    a. d. III[.] Nōn. Febr.
    [ante diem tertium Nōnās Februāriās]
    3rd February

Usage notes

  • Commonly combined with a Roman numeral; Kal., Nōn., or Īd.; and an abbreviated month to give a date according to the Roman calendar. For details regarding its irregular grammar and usage, see diēs.
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