in or of the month preceding the current one: on the 12th ultimo. Abbreviation: ult., ulto. Compare instant ( def 11 ), proximo.

1575–85; < Latin ultimō (mēnse or diē) in the last (month) or on the last (day)

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ultimo
World English Dictionary
ultimo (ˈʌltɪˌməʊ)
instant Compare proximo ult. in or during the previous month: a letter of the 7th ultimo
[C16: from Latin ultimō on the last]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

"in the month preceding the present," 1616, common in abbreviated form ult. in 18c.-19c. correspondence and newspapers, from L. ultimo (mense) "of last (month)," abl. sing. masc. of ultimus "last" (see ultimate). Earlier it was used in the sense of "on the last day of the month specified" (1582).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature