In a manner that is willing to take risks and seek adventure; with a daring or bold approach.
From 'adventuresome' (adjective) + '-ly' (Old English adverbial suffix). The '-ly' suffix transforms adjectives into adverbs, a pattern that has existed in English for over 1,200 years.
English makes adverbs almost automatically by adding '-ly' to adjectives—it's such a common pattern that we rarely notice it. But other languages like French and German use completely different methods to create adverbs, showing how English's systematic approach to word-building is unusually neat and efficient.
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