Origin and History:
The phrase likely arose from a combination of factors:
* Grammatical simplification: In informal speech, people often simplify grammar, dropping articles and using incorrect verb conjugations.
* Regional dialects: Many Southern dialects have unique grammatical features, including the use of "come" instead of "be" in questions about origin.
* AAVE influence: AAVE has its own distinct grammar and vocabulary, which can influence other regional dialects.
Usage:
While grammatically incorrect, "What she come from?" is widely understood and used in informal settings. It's important to note that it's not considered standard English and may be perceived as uneducated or unprofessional in formal situations.
Alternative phrase:
The correct and standard way to ask this question is: "Where is she from?"