Simple past tense and past participle of scalp. (verb)
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Use "scalped" in a sentence
"In all his dealings with the Acadians, the Indian had found only unimpeachable faith and honor; but with the colonist of Massachusetts, there had been nothing but over-reaching and treachery: intercourse with the first had not led to a scratch, or a single drop of blood; while on the other hand a bounty of "one hundred pounds was offered for each male of their tribe if over twelve years of age, if scalped; one hundred and five pounds if taken prisoner; fifty pounds for each _woman and child scalped_, and fifty pounds when brought in alive.""
"The slain are scalped, that is, the scalp is circularly incised in the hairy part of the head and torn from the skull."
"I managed to get to their Powerstation show on a rare night out and it was pretty damn cool - but I'm not sure it was worth the $600 price tag scalped tickets were getting on TradeMe in the weeks beforehand."