A person who seems strange, eccentric, or different from what people usually expect; often used informally or as a mild insult.
From 'weird' (from Old English 'wyrd' meaning fate) plus the suffix '-o.' The term became common slang in the 20th century as people created new words to label unconventional behavior.
The original meaning of 'weird' was actually 'related to fate or destiny'—it came from the three Weird Sisters in Shakespeare. Over time, it came to mean 'strange,' and adding '-o' made it personal—it turned an adjective into a label for a whole person.
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