Simple past tense and past participle of sheath.(verb)
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Use "sheathed" in a sentence
"There were those who looked at horror in the eye and decided that the most reasonable course of action was to drink themselves into a stupor, sheathed from the unacceptable by smoke and alcohol."
"His sword sheathed, the Erl King signaled for the horn."
"The Nyueng Bao squatted not far away, sword sheathed across his back, waiting, a ragged little man who did not look dangerous at all."