In a manner that is furry, furlike, or covered with fur; with a furry quality.
From 'furry' with the adverb-forming suffix '-ly,' creating an adverb meaning 'in a furry manner.' This construction is standard in English for creating adverbs from adjectives.
This is technically a real word but almost never used—it's hard to describe actions 'furrily' since actions aren't hairy! You might see it in poetry or whimsical writing to describe something moving in a soft, fur-like way, but it's one of those adverbs that proves English grammar rules even when the result sounds silly.
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