anno
adv. C2 Proficiency US //ˈænoʊ// an·no
adv. in the year. You use this in very formal writing or when you are talking about dates in Latin.
adv. in the year. Used primarily in formal or academic contexts, particularly when citing dates in Latin or in legal and historical documentation.
The event took place anno Domini 1492.
The historian noted that the treaty was signed anno Domini 1500, marking the end of the conflict.
In the manuscript, the scribe meticulously recorded the events anno Domini 1348, providing a rare contemporary account of the plague's impact on the local economy.