Definition - The speech patterns unique to an individual.

1. These speech patterns consist of the diction, idioms, and pronunciations that are unique to any individual, hence everyone speaks their own idiolect.

Example -
"They misunderestimated me."
(George Bush at Bentonville, Ark., Nov. 6, 2000)

Etymology -
The word was coined by attaching the combining form idios (which in Greek means "personal" or "private" in Greek) to the word dialect.

Oxford English Dictionary -
Its first citation is from 1948:
"The totality of the possible utterances of one speaker at one time in using a language to interact with one other speaker is an idiolect."
(B. Bloch in Language XXIV. 7 )

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