Simple past tense and past participle of retrace.(verb)
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Use "retraced" in a sentence
"At the end of an hour Mr. Pike wore the Elsinore around, and again retraced the course she must have been sailing when the Greek went over."
""retraced" their steps and re-interviewed nine men who survived a string of 14 attacks from late May to early this month."
"He said there must have been a moment at which his soul slipped away but he could not remember it even though all day every day he retraced his movements through that space trying to locate a someplace to go back to or a something to undo."