Nothing or zero; also spelled 'nought' and used in phrases like 'all for naught' (all for nothing).
From Old English 'nāwiht' or 'nāught,' combining 'na' (no) and 'wiht' (creature or thing)—literally 'no thing.' The 'ght' spelling came from influence of words like 'ought.'
The original meaning was literally 'no thing' (no creature, no being), which is why 'naught' feels so absolute and final—when something comes to naught, it becomes literally nothing, making it one of the oldest and most philosophical words for zero in English.
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