Sound & Diction
Solecism
A deliberate breach of standard grammar — dialect, double negatives, non-standard forms — used for effect. In fiction it builds voice: the 'error' makes the speaker real.
"You don't know about me without you have read a book…" — Huck Finn
Don't confuse it with. An accidental solecism is just an error; the device requires the wrongness to be chosen and characterizing. Enallage is the classical name for expressive grammatical substitution.
In the Reader — 1 excerpt
You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer; but that ain't no matter. That book was made by Mr. Mark Twain, and
The rest of the family
Alliteration Assonance Onomatopoeia Tmesis Neologism Archaism Epithet