Meaning
A negative marker meaning 'not', 'won't', or 'am/are not (doing)'. Placed before a verb it negates it — 'mi nah go' means I'm not going or I won't go — and the longer 'nah' often carries a continuous or emphatic sense, 'not going to', a firm refusal or an ongoing negation. One of the small but essential grammatical particles of the language, it does the core work of denial and refusal, marking what a person is not doing or will not do, and it is heard constantly in everyday speech.
Examples
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Mi nah do dat.
I'm not doing that. / I won't do that.
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Him na listen.
He isn't listening.
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Wi nah give up.
We're not giving up.
Origin
A negative particle, related to the English dialectal 'nae/na'; negation markers of this kind are common across creole languages.
How it’s used
Distinct from 'nuh' (also 'not/don't'): 'nah' leans toward an ongoing or future refusal ('nah go'), while 'nuh' often negates a plain statement ('nuh badda' = don't bother).
Gloss adapted from A Learner's Glossary of Jamaican, Open Grammar Project, licensed under CC BY 4.0. View the source work · CC BY 4.0