subs. phr. (racing).—The last two months of the racing season, commencing with October: also as adj. [Properly (Scots’) = the latter part of autumn.] Hence BACK-ENDER = a horse entered for a race late in the season.

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  1820.  Blackwood’s Magazine, Oct., 3. When you did me the honour to stop a day or two at last BACK-END.

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  1883.  HAWLEY SMART, Hard Lines, xxix. ‘Most of what I got over that steeplechase I dropped at the BACK-END over the October handicaps.’

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  1883.  Daily Telegraph, 30 April, 3. 6. And neither [horse] could beat Palermo on BACK-END form.

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  c. 1889.  The Sporting Times [A Dictionary of Slang, Jargon & Cant]. Lord Bradford’s horse evidently likes the Doncaster course, and he is undoubtedly a BACK-ENDER.

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