Said

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Old English secgan, of Germanic origin; related to Dutch zeggen and German sagen .

wiktionary

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From Middle English seide(preterite) and seid, iseid(past participle), from Old English sǣde, sæġde(preterite) and ġesæġd(past participle), equivalent to say +‎ -ed.

etymonline

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said (adj.)

"named or mentioned before," c. 1300, past-participle adjective from say (v.).