[ awr-doh ]
/ ˈɔr doʊ /

noun, plural or·di·nes [awr-dn-eez]. /ˈɔr dnˌiz/.

Roman Catholic Church. a booklet containing short and abbreviated directions for the contents of the office and Mass of each day in the year.

Origin of ordo

1840–50; <Medieval Latin ōrdō,Latin: series, row, order
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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