reduplication of letters or syllables in writing, printing, etc., usually through error.

Compare haplography.

Origin of dittography

1870–75; < Greek dittographía, dialectal variant of dissographía, equivalent to dissó(s) double + -graphia -graphy
Related formsdit·to·graph·ic [dit-uh-graf-ik] /ˌdɪt əˈgræf ɪk/, adjective
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British Dictionary definitions for dittography


noun plural -phies

the unintentional repetition of letters or words
a passage of manuscript demonstrating dittography
Derived Formsdittographic (ˌdɪtəˈɡræfɪk), adjective
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