Simple past tense and past participle of hark.(verb)
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Use "harked" in a sentence
"Besides, Ginny and I were aware of the military maxim that in any engagement the first casualty will be your own battle plan; while the sword harked back to eras when you might occasionally pull a smart trick like a feigned retreat, but mainly you just charged."
"Blatter said the idea harked back to the days of the disbanded G14 of major European clubs he always suspected of trying to set up a super league of the top clubs at the cost of the many national leagues in Europe."
"It kind of harked back a little bit to the Roger Corman days."