An archaic or dialectal form meaning to advise, counsel, or persuade someone to do something.
From Old English 'atredan' meaning to counsel or advise, possibly from 'a-' prefix plus 'tread' or 'counsel,' a verb that fell out of common use.
Atrede is so old that it barely exists in modern English anymore, but if you read Chaucer or older Middle English texts, you'll find characters 'atreeding' each other — trying to convince friends to do things!
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