IDIOLECT

Idiolect is an individual's unique use of language, including speech. This unique usage encompasses vocabulary, grammar, and pronunciation. This differs from a dialect, a common set of linguistic characteristics shared among a group of people. The term is etymologically related to the Greek prefix idio- (meaning "own, personal, private, peculiar, separate, distinct") and -lect, abstracted from dialect, and ultimately from Ancient Greek λέγω, légō, 'I speak'.