In the manner or style of gospel; resembling or characteristic of Gospel music, teachings, or spiritual expression.
From 'gospel' + the adverbial/adjectival suffix -ly, creating a form that means 'in a gospel-like manner.'
Adding -ly to gospel creates an adverb that perfectly captures the soulful, emotional style of Gospel music—it's how you'd describe singing that's 'gospelly' rather than just technically accurate.
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