To stain or make bloody; to cause bloodshed upon something; an extremely archaic term.
From Latin 'cruentatus', the past participle of 'cruentare', derived from 'cruentus' (bloody), a verb formation rarely seen in modern English.
This verb is so archaic that even historical literature uses it sparingly—it's a perfect example of words that existed grammatically in English but never really took hold in common speech.
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