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oct-

1.
variant of octa- or octo- before a vowel:
octal.

Oct.

1.

oct.

1.

October

[ok-toh-ber] /ɒkˈtoʊ bər/
noun
1.
the tenth month of the year, containing 31 days.
Abbreviation: Oct.
2.
British. ale or beer traditionally brewed in this month.
Origin
1050
before 1050; Middle English, Old English < Latin Octōber the eighth month of the early Roman year, equivalent to octō- octo- + -ber, on the model of September, November, December; see December
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for oct

Oct

abbreviation
1.
October

oct-

combining form
1.
(used before a vowel) a variant of octo-

October

/ɒkˈtəʊbə/
noun
1.
the tenth month of the year, consisting of 31 days
Word Origin
Old English, from Latin, from octo eight, since it was the eighth month in Roman reckoning
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for oct
October
c.1050, from L. October (mensis), from octo "eight," from PIE base *octo(u)- "eight." For -ber see December. Replaced O.E. winterfylleð. In Rus. history, October Revolution (in which the Bolsheviks overthrew the Provisional Government) happened Nov. 7, but because Russia had not at that time adpoted the Gregorian calendar reform, this date was reckoned there (Old Style) as Oct. 25. Octobrist can have two senses: the first (from Rus. oktyabrist) is a member of the league formed October 1905 in response to imperial policies; the second (from Rus. Oktyabryonok) is a member of a Rus. communist children's organization, founded 1925 and named in honor of the October Revolution.
Online Etymology Dictionary, © 2010 Douglas Harper
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Related Abbreviations for oct

OCT

Octans (constellation)

oct.

octavo

Oct.

October
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Article for oct

October

10th month of the Gregorian calendar. Its name is derived from octo, Latin for "eight," an indication of its position in the early Roman calendar.

Learn more about October with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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