Having been transferred or conveyed by a formal legal document called a deed, as in 'deeded property' meaning property officially transferred to someone's ownership.
Past participle of 'deed' used as a verb, though more commonly an adjective. 'Deed' itself comes from Old English 'dǽd' (action/thing done), and by the 14th century meant a legal document recording an action.
When someone 'deeds' you property, they're literally 'doing the deed'—the old meaning of performing an action evolved to mean 'documenting the action officially,' which is why we still say 'I'm putting it in the deed.'
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