or·​do ˈȯr-(ˌ)dō How to pronounce ordo (audio)
plural ordos or ordines ˈȯr-də-ˌnēz How to pronounce ordo (audio)
: a list of offices and feasts of the Roman Catholic Church for each day of the year

Example Sentences

Recent Examples on the Web Indeed, the legend on the Great Seal of the United States, a novus ordo seclorum — a new order for the ages — was borrowed from the Aeneid. Joseph Loconte, National Review, 12 Sep. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ordo.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Medieval Latin, from Latin, order

First Known Use

1849, in the meaning defined above

Time Traveler
The first known use of ordo was in 1849

Dictionary Entries Near ordo

Cite this Entry

“Ordo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ordo. Accessed 4 Jun. 2023.

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