A proposed or playful word (non-standard) possibly meaning 'having been deeded multiple times' or 'heavily documented with deeds,' though it does not appear in standard dictionaries.
If a real word: would be 'deed' plus the past participle '-ed' applied twice or redundantly. This appears to be either a rare dialectal variant, a neologism, or possibly an error; it does not have established etymological roots in standard English.
This word might be dialectal or a historical curiosity—English speakers sometimes doubled past participles for emphasis in older writing, though 'deedeed' doesn't appear in major historical sources.
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