to cut or mark something with slashes, or to cover something with slash marks.
From be- (prefix) + slash (origin uncertain, possibly from French esclairer or from the sound itself). The intensive prefix suggests making multiple cuts or thoroughly marking something.
Slash has a weird history—some scholars think it might be related to the Old French word for 'to break,' but others think it's just onomatopoeia from the swishing sound a sword makes. We're not totally sure!
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