In a flaunting or showy state; displayed ostentatiously or in a way meant to attract attention.
From 'a-' (in the state of) + 'flaunt,' where 'flaunt' likely comes from Scandinavian origins (compare Norwegian 'flanta') combined with the intensive prefix.
The 'a-' prefix in 'aflaunt' is the same one that made 'afoot,' 'aboard,' and 'aware'—these are linguistic fossils showing an entire grammar system that used to be common but nearly vanished.
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