A variant spelling of demihag, referring to a weaker or half-powered witch or supernatural being.
From 'demi-' (half) + 'hague,' an alternative spelling of 'hag.' This variant appears in older texts and represents dialectal or regional spelling variations common before standardized spelling.
English spelling wasn't standardized until the 1700s, so the same creature might be called a 'demihag,' 'demihague,' or a dozen other ways depending on who was writing and where they were from—basically medieval autocorrect gone wild.
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