Definition - The omission of a letter or syllable when writing.

Example -
Writing omision instead of omission

Etymology -
The word derives from the Greek leipein, be wanting + graphos, writing.

Oxford English Dictionary -
Its first citation is from 1888:
"Haplography or Lipography … is a special and very common case of omission."
(J. Gow Comp. Classics 55)

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