- the accidental omission of a letter or letter group that should be repeated in writing, as in Missippi for Mississippi.
Origin of haplography
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- the accidental writing of only one letter or syllable where there should be two similar letters or syllables, as in spelling endodontics as endontics
C19: from Greek, from haplous single + -graphy
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
Word Origin and History for haplography
Online Etymology Dictionary, © 2010 Douglas Harper