Checked or examined something again to make sure it's correct or to verify information a second time.
Prefix 're-' (again) plus 'check' (from Old French 'echec' meaning a halt or setback, from the game of chess). The 're-' prefix is productive in English for repeating any action.
The 're-' prefix in English is incredibly powerful—you can 're-' almost any verb (reconsider, redo, reassess), which shows how language loves recycling patterns rather than inventing entirely new words.
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