In a manner that emphasizes or creates distinction or difference; by way of emphasizing differences.
From 'difference' + '-ing' + '-ly' (adverbial suffix). This is a rare or archaic construction showing how English builds adverbs from verbs, though the word is virtually obsolete in modern usage.
This word is so rare it barely exists, but it perfectly shows how English lets you stack suffixes—'difference' → 'differencing' → 'differencingly'! It's like watching English construction rules in slow motion.
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