often capitalized A
used to indicate that a time division falls within the Christian era

Word History

Etymology

Medieval Latin, in the year of the Lord

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of anno Domini was in the 15th century

Browse Nearby Words

Cite this Entry

“Anno Domini.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anno%20Domini. Accessed 15 Mar. 2025.

Kids Definition

often capitalized A
used to indicate that a time division falls within the period dating from the birth of Christ
Etymology

Latin, literally "in the year of the Lord"

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