To ride over, across, or upon; to mock or jeer at someone; archaic forms include meanings related to riding or deriding.
From 'be-' (thoroughly) plus 'ride' (Old English 'rīdan'). The prefix adds intensity or changes the sense to mean riding across or over something thoroughly, or extending to mean 'to deride' through folk etymology.
This word shows how the same word can evolve in completely different directions—'beride' might mean actually riding across something, or it could mean mocking someone, depending on which version you're reading.
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