an archaic or dialectal term meaning to close, shut, or seal something.
From be- (prefix) + sluit, possibly from Middle Dutch sluiten (to close). This is a rare word with uncertain etymology that may have been influenced by or borrowed from Dutch.
This is one of the rarest be- words, and it might be a borrowing from Dutch or a regional dialect word that never quite became standard English—it's the kind of word that reminds us English once had many more of these formations.
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