The greatest or most notorious thief; a supreme plunderer or the worst offender in terms of stealing.
From 'arch-' (chief, worst, or greatest) plus 'pilferer' (one who pilfers or steals small things, from Old French 'pelfrer'). The compound emphasizes extreme theft or the most accomplished criminal.
Calling someone an 'archpilferer' isn't just saying they stole—it's saying they're *the* thief, the legendary criminal whose heists are legendary, like Arsène Lupin or Aladdin!
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