Third person singular present tense of 'erase': to remove or rub out marks, writing, or information.
From Latin 'eradere' (e- 'out' + radere 'to scrape'). The suffix '-s' indicates third person singular in present tense.
Interestingly, when you 'erase' on a computer, the data doesn't really disappear—it just gets marked as deletable, which is why forensics experts can recover 'erased' files!
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