An archaic or dialect word meaning to cheat or defraud someone.
From Old English 'achecte' or similar forms, possibly related to 'cheat' with the prefix 'a-' (a common Old English intensifying prefix), with meanings overlapping with deceit.
The 'a-' prefix in old English made verbs more emphatic, so 'acheat' didn't just mean cheat—it meant to really, thoroughly cheat someone, which shows how our language used to layer intensity differently.
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